A Tibetan Buddhist monk wearing traditional costume waits to perform ritual dance on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin TPX IMAGES OF THE DAY

Buddhist devotees spin prayer wheels on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Buddhist devotees walk under a giant thangka, a sacred painting on cloth, on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Buddhist devotees spin prayer wheels on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

A Buddhist devotee carries a Buddha statue on her back on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Tibetan Buddhist monks wearing traditional costumes perform ritual dance on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

A Tibetan Buddhist monk wearing traditional costume performs ritual dance on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

A Tibetan Buddhist monk wearing traditional costume performs ritual dance on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

A Tibetan Buddhist monk wearing traditional costume performs ritual dance on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Tibetan Buddhist monks wearing traditional costumes perform ritual dance on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

A Tibetan Buddhist monk wearing traditional costume performs ritual dance on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Tibetan Buddhist monks wearing traditional costumes perform ritual dance on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Tibetan Buddhist monks wearing traditional costumes wait to perform ritual dance on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

A Tibetan Buddhist monk wearing traditional costume waits to perform ritual dance on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

A Tibetan Buddhist monk wearing traditional costume waits to perform ritual dance on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Buddhist devotees display a giant thangka, a sacred painting on cloth, on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin TPX IMAGES OF THE DAY

Buddhist devotees display a giant thangka, a sacred painting on cloth, on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Buddhist devotees display a giant thangka, a sacred painting on cloth, on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Buddhist devotees display a giant thangka, a sacred painting on cloth, on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Buddhist devotees display a giant thangka, a sacred painting on cloth, on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Buddhist devotees display a giant thangka, a sacred painting on cloth, on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Buddhist devotees display a giant thangka, a sacred painting on cloth, on Vesak Day at the Enlightened Heart Tibetan Buddhist temple in Ipoh, Malaysia May 29, 2018. REUTERS/Lai Seng Sin

Australia's players celebrate with the trophy after their victory in their final match against Pakistan in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Australia's players celebrate their victory in their final match against Pakistan in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200 km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Pakistan's Rehan Butt celebrates scoring their second goal with teammates as Australia's Jacob Whetton watches during their final match in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200 km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Australia's Matthew Swann (R) and Pakistan's Waseem Ahmed fight for the ball during their final match in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200km (120 miles) north of Kuala Lumpur May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Australia's Matthew Butturini and Pakistan's Muhammad Waqas (front) fight for the ball during their final match in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Australia's Christopher Ciriello (front) celebrates scoring their first goal against Pakistan in their final match in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200 km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Britain's players celebrate their victory over New Zealand in their 3rd and 4th placement match in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200 km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

New Zealand's Andrew Hayward (L) watches as Britain's players celebrate scoring their third goal during their 3rd and 4th placement match in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200 km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

New Zealand's players celebrate scoring a goal against Britain during their 3rd and 4th placement match in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200 km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

South Korea's Jang Jong-hyun (L) fights for the ball with India's Vishnu Vikram Pillay during their 5th and 6th placement match in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

South Korea's Yooon Sung-hoon (in red) fights for the ball with India's Vikas Sharma during their 5th and 6th placement match in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

South Korea's Hyun Hye-sung (L) fights for the ball with India's Vikas Vishnu Pillay during their 5th and 6th placement match in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

South Korea's Cho Suk-hoon (L) and Nam Hyun-woo (2nd L) celebrate after scoring their first goal as India's Rupinder Pal Singh (in blue) walks away during their 5th and 6th placement match in the Sultan Azlan Shah Cup hockey tournament in Ipoh, 200km (120 miles) north of Kuala Lumpur, May 15, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Dean Couzins of New Zealand (L) fights for the ball with Kiel Brown of Australia (R) during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011 REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Benjamin Collier of New Zealand (L) fights for the ball with Matt Gohdes of Australia (R) during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011 REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Team Australia celebrate their first goal against New Zealand during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Dean Couzins of New Zealand (L) fights for the ball with Matt Gohdes of Australia (R) during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011 REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Dean Couzins of New Zealand (L) fights for the ball with Simon Orchard of Australia (R) during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011 REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

A Malaysian fan holds a sparkler during Malaysia's match against Pakistan during the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Muhammad Marhan Mohd Jalil of Malaysia (L) fights for the ball with Akbar Waqas of Pakistan during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Team Pakistan celebrates their third goal against Malaysia during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Tengku Ahmad Tajudin of Malaysia (L) fights for the ball with Syed Kashif Shah of Pakistan during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Saari Faizal of Malaysia (L) fights for the ball with Mehmood Rashid of Pakistan during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Mohd Rahim Muhammad Izzat of Malaysia (L) fights for the ball with Fareed Ahmad of Pakistan during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

James Tindall of Britain (L) fights for the ball with Hong Eun Seong of South Korea during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Hong Eun Seong of South Korea (in blue) fights for the ball with James Tindall of Britain during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Yoon Sung Hoon of South Korea (in blue) fights for the ball with Richard Springham of Britain during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Robert Moore of Britain (L) fights for the ball with Lee Seung Hoon of South Korea during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Kang Moon Kyu of South Korea (L) fights for the ball with Richard Alexander of Britain during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Daniel Richard Fox of Britain (L) fights for the ball with Yoon Sung Hoon of South Korea during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

Iain Mackay of Britain (L) fights for the ball with Hyun Hye-sung of South Korea during their match at the Sultan Azlan Shah Cup hockey tournament in Ipoh May 14, 2011. REUTERS/Samsul Said (MALAYSIA - Tags: SPORT FIELD HOCKEY)

A family member of Sriwai Swatphet, who died in Monday's bus crash, cries over her coffin at a hospital's morgue in Ipoh, in Malaysia's northern state of Perak December 22, 2010. The Malaysian bus carrying 37 Thai tourists hit a road divider and overturned, killing 26 people, as it descended from a popular hill resort. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: DISASTER TRANSPORT TRAVEL)

Aummarine Kamolkunpipat, husband of Piyanun Klingchuay who died in Monday's bus crash, hugs her coffin at a hospital's morgue in Ipoh in Malaysia's northern state of Perak December 22, 2010. The Malaysian bus carrying 37 Thai tourists hit a road divider and overturned, killing 26 people, as it descended from a popular hill resort. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: DISASTER TRANSPORT TRAVEL)

Army personnel (L) carry one of the coffins of victims of Monday's bus crash at a hospital's morgue in Ipoh, in Malaysia's northern state of Perak December 22, 2010. A Malaysian bus carrying tourists from Thailand hit a road divider and overturned, killing 26 people, state news agency Bernama reported on Monday. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: DISASTER MILITARY TRANSPORT TRAVEL)

Relatives from Thailand are joined by Buddhist monks as they pray over coffins of victims of the Monday's bus crash at a hospital's morgue in Ipoh, in Malaysia's northern state of Perak December 22, 2010. A Malaysian bus carrying tourists from Thailand hit a road divider and overturned, killing 26 people, state news agency Bernama reported on Monday. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: DISASTER TRANSPORT TRAVEL RELIGION)

Aummarine Kamolkunpipat, husband of Piyanun Klingchuay, who is a victim of the Monday's bus crash, is comforted as he hugs a coffin with her body at a hospital's morgue in Ipoh, in Malaysia's northern state of Perak December 22, 2010. A Malaysian bus carrying tourists from Thailand hit a road divider and overturned, killing 26 people, state news agency Bernama reported on Monday. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: DISASTER TRANSPORT TRAVEL)

Aummarine Kamolkunpipat, husband of Piyanun Klingchuay, who is a victim of the Monday's bus crash, hugs a coffin with her body at a hospital's morgue in Ipoh, in Malaysia's northern state of Perak December 22, 2010. A Malaysian bus carrying tourists from Thailand hit a road divider and overturned, killing 26 people, state news agency Bernama reported on Monday. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: DISASTER IMAGES OF THE DAY TRANSPORT TRAVEL)

Members of the Malaysian Road Safety Council take notes in front of the list of crash victims outside the mortuary at a hospital in Ipoh, in Malaysia's northern state of Perak December 21, 2010. A Malaysian bus carrying Thai tourists hit a road divider and overturned, killing 26 people, state news agency Bernama reported on Monday. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: DISASTER TRANSPORT TRAVEL)