Nepalese police personnel and a sniffer dog check the premises of the historic nine-storey Dharahara tower that fell during the 2015 earthquake before Prime Minister Khadga Prasad Sharma Oli, also known as K.P. Oli, arrives to attend an event to mark the third anniversary of the earthquake that killed around 9000 people, in Kathmandu, Nepal April 25, 2018. REUTERS/Navesh Chitrakar