A hat stuck on a fence is seen at the site where a coach crashed after plunging off a viaduct near the southern town of Avellino July 29, 2013. Thirty-nine people were killed and around 10 injured when a bus plunged off a viaduct in southern Italy in what Prime Minister Enrico Letta described on Monday as a huge tragedy. Initial reports suggested that the coach was travelling at speed and had hit four or five cars before crashing over the roadside barriers on a stretch of road near Monteforte Irpino, east of Naples, on Sunday night. There were around 50 people on board, including many children. REUTERS/Ciro De Luca (ITALY - Tags: DISASTER TPX IMAGES OF THE DAY TRANSPORT) 

A section of the viaduct broken by a coach as it plunged off is seen near the southern town of Avellino July 29, 2013. Thirty-nine people were killed and around 10 injured when a bus plunged off a viaduct in southern Italy in what Prime Minister Enrico Letta described on Monday as a huge tragedy. Initial reports suggested that the coach was travelling at speed and had hit four or five cars before crashing over the roadside barriers on a stretch of road near Monteforte Irpino, east of Naples, on Sunday night. There were around 50 people on board, including many children. REUTERS/Ciro De Luca (ITALY - Tags: DISASTER) 

A policeman stands on the viaduct from where a coach plunged off near the southern town of Avellino July 29, 2013. Thirty-nine people were killed and around 10 injured when the bus plunged off the viaduct in southern Italy in what Prime Minister Enrico Letta described on Monday as a huge tragedy. REUTERS/Ciro De Luca (ITALY - Tags: DISASTER TRANSPORT) 

The site of a coach crash is seen near the southern town of Avellino July 29, 2013. Thirty-nine people were killed and around 10 injured when the bus plunged off a viaduct in southern Italy in what Prime Minister Enrico Letta described on Monday as a huge tragedy. REUTERS/Ciro De Luca (ITALY - Tags: DISASTER TRANSPORT) 

ITALY-CRASH/ - Map locating southern town of Avellino where at least 36 people died after a coach plunged off a viaduct 

A damaged car is seen after a coach crash near the southern town of Avellino July 29, 2013. At least 36 people died after the bus plunged more than 15 metres (49 feet) off a viaduct in southern Italy on Sunday, a spokesman for the fire service said. The coach was said to have collided with several cars before falling over the viaduct. REUTERS/Ciro De Luca (ITALY - Tags: DISASTER) 

Aspiring boxers (L-R) Chibata, Joilson Santos (nicknamed "Talent"), and Valdir Aparecido (nicknamed "Gorilla") stand before a training session at a gymnasium under the Alcantara Machado viaduct in the Mooca neighborhood of Sao Paulo, March 25, 2011. The Boxing Academy of Garrido, founded by Brazilian former pro boxer Nilson Garrido, adopts primitive training equipment that he developed himself during his years as a coach, in a project whose goal is to take the sport to the poor and marginalized population. REUTERS/Nacho Doce (BRAZIL - Tags: SPORT BOXING SOCIETY) 

A homeless man collects firewood before cooking his lunch under a highway viaduct where he lives in Hefei, Anhui province March 16, 2012. China must embrace slower growth and bolder political reform to keep its economy from faltering and to spread wealth more evenly, Premier Wen Jiabao said on Wednesday, vowing to use his last year in power to attack mounting discontent that he warned could end in chaos. REUTERS/Sean Yong (CHINA - Tags: SOCIETY BUSINESS POLITICS) 

Crack addicts gather under the Glicerio viaduct in the Liberdade neighborhood of Sao Paulo February 1, 2012. Brazil's surging crack cocaine epidemic prompted officials of Latin America's biggest country to launch a $2.3-billion dollar plan to curb the spread of drug abuse and trafficking by 2014. Crack users dispersed to several parts of Sao Paulo city after military police occupied the area known as "Cracolandia" (crackland). Picture taken February 1, 2012. REUTERS/Nacho Doce (BRAZIL - Tags: CRIME LAW DRUGS SOCIETY) 

A drug user smokes crack on a can of soft drink under a viaduct in the Consolacao neighborhood of Sao Paulo February 4, 2012. Brazil's surging crack cocaine epidemic prompted officials of Latin America's biggest country to launch a $2.3-billion dollar plan to curb the spread of drug abuse and trafficking by 2014. Crack users dispersed to several parts of Sao Paulo city after military police occupied the area known as "Cracolandia" (crackland). Picture taken February 4, 2012. REUTERS/Nacho Doce (BRAZIL - Tags: CRIME LAW DRUGS SOCIETY) 

Labourers install scaffolding at a highway viaduct construction site in Hefei, Anhui province December 28, 2011. China's industrial profits rose 24.4 percent in the first 11 months of 2011 from a year ago to 4.66 trillion yuan ($735.43 billion), the National Bureau of Statistics said on Tuesday. REUTERS/Stringer (CHINA - Tags: BUSINESS CONSTRUCTION) 

Sara Nelson of Seattle misspells 'waterfront' when she wrote the message 'hello waterfront' with chalk as she walked along the now-closed Alaskan Way Viaduct, a major Seattle arterial road along the downtown corridor on October 22, 2011. The 1950s-vintage highway which sees more than 90,000 vehicles a day, was closed on October 21 as workers begin to demolish the earthquake-damaged structure. Puget Sound residents are struggling to find alternate work-commute routes during the closure to avoid metropolitan gridlock. REUTERS/Anthony Bolante (UNITED STATES - Tags: CITYSPACE TRANSPORT ENVIRONMENT) 

Scott Hart, Washington State Department of Transportation assistant project engineer, secures a fence of the now-closed Alaskan Way Viaduct, a major Seattle arterial road along the downtown corridor on October 22, 2011. The 1950s-vintage highway which sees more than 90,000 vehicles a day, was closed on October 21 as workers begin to demolish the earthquake-damaged structure. Puget Sound residents are struggling to find alternate work-commute routes during the closure to avoid metropolitan gridlock. REUTERS/Anthony Bolante (UNITED STATES - Tags: CITYSPACE TRANSPORT ENVIRONMENT) 

A Washington State Department of Transportation worker walks to survey progress of the demolition of the now-closed Alaskan Way Viaduct, a major Seattle arterial road along the downtown corridor October 22, 2011. The 1950s-vintage highway which sees more than 90,000 vehicles a day, was closed on October 21 as workers begin to demolish the earthquake-damaged structure. Puget Sound residents are struggling to find alternate work-commute routes during the closure to avoid metropolitan gridlock. REUTERS/Anthony Bolante (UNITED STATES - Tags: CITYSPACE TRANSPORT ENVIRONMENT) 

A Washington State Department of Transportation demolition crew begin taking down the now-closed Alaskan Way Viaduct, a major arterial road along the downtown Seattle corridor on October 21, 2011. The 1950s-vintage highway which sees more than 90,000 vehicles a day, was closed on October 21 as workers begin to demolish the earthquake-damaged structure. Puget Sound residents are struggling to find alternate work-commute routes during the closure to avoid metropolitan gridlock. Picture taken October 21, 2011. REUTERS/Anthony Bolante (UNITED STATES - Tags: CITYSPACE ENVIRONMENT TRANSPORT) 

A Washington State Department of Transportation demolition crew begin the taking down the now-closed Alaskan Way Viaduct, a major Seattle arterial road along the downtown corridor October 21, 2011. The 1950s-vintage highway which sees more than 90,000 vehicles a day, was closed on October 21 as workers begin to demolish the earthquake-damaged structure. Puget Sound residents are struggling to find alternate work-commute routes during the closure to avoid metropolitan gridlock. Picture taken October 21, 2011. REUTERS/Anthony Bolante (UNITED STATES - Tags: CITYSPACE TRANSPORT ENVIRONMENT) 

Pedestrians take a walk on the upper deck of the now-closed Alaskan Way Viaduct, a major Seattle arterial road along the downtown corridor October 22, 2011. The 1950s-vintage highway which sees more than 90,000 vehicles a day, was closed on October 21 as workers begin to demolish the earthquake-damaged structure. Puget Sound residents are struggling to find alternate work-commute routes during the closure to avoid metropolitan gridlock. REUTERS/Anthony Bolante (UNITED STATES - Tags: TRANSPORT ENVIRONMENT CITYSPACE) 

A labourer walks between scaffolding at a highway viaduct construction site in Hefei, Anhui province April 17, 2011. China's turbo-charged growth eased just a touch in the first quarter, while its inflation jumped to a 32-month high, putting pressure on the government to do more to rein in prices and keep the economy on an even keel. REUTERS/Stringer (CHINA - Tags: BUSINESS CONSTRUCTION IMAGES OF THE DAY) 

A man guides his oxen by a road under the "El Viaducto del Malleco" railway (Viaduct of Malleco) near Temuco city, some 677 km (420 miles) south of Santiago August 27, 2009. At more than 100 meters (328 foot) over the Malleco river and weighing 1.4 tons the viaduct was opened by former Chilean President Jose Manuel Balmaceda in 1890. REUTERS/Ivan Alvarado (CHILE SOCIETY TRAVEL) 

Landslides close the contingency road connecting Caracas to La Guaira May 8, 2006. The trail would be provisionally closed due to the land movement caused by rains. It was built in February following the collapse of Viaduct No. 1 of the Caracas-La Guaira freeway, which linked the capital city with the country's main port and airport. REUTERS/Francesco Spotorno 

Landslides close the contingency road connecting Caracas to La Guaira May 8, 2006. The trail would be provisionally closed due to the land movement caused by rains. It was built in February following the collapse of Viaduct No. 1 of the Caracas-La Guaira freeway, which linked the capital city with the country's main port and airport. REUTERS/Francesco Spotorno 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A civilian mini van is stopped at a flooded viaduct during a gale in
central Athens July 8, 2002. Heavy rain and gales swept across Athens
on Monday killing a factory worker in a wall collapse, flooding
buildings and bringing traffic to a halt. After months of hot, dry
weather, the downpour filled up drains and sewage pipes and swamped
central Athens roads. REUTERS/Yannis Behrakis REUTERS

YB/FMS 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Greek rescue workers in a dingy search for survivors in an flooded
viaduct in central Athens July 8, 2002. Heavy rain and gales swept
across Athens on Monday killing a factory worker when a wall collapsed,
flooding buildings and bringing traffic to a halt. After months of hot,
dry weather, the downpour filled up drains and sewage pipes and swamped
central Athens roads. REUTERS/Yannis Behrakis REUTERS

YB 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Greek rescue workers in a dingy search for survivors in an flooded viaduct
in central Athens July 8, 2002. Heavy rain and gales swept across Athens on
Monday killing a factory worker in a wall collapse, flooding buildings and
bringing traffic to a halt. After months of hot, dry weather, the summer
downpour filled up drains and sewage pipes and swamped many roads. RIGHTS
FREE REUTERS/Yannis Behrakis

YB 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Greek firemen and rescue workers search for survivors inside a civilian
car trapped in an flooded viaduct in central Athens July 8, 2002. Heavy
rain and gales swept across Athens on Monday killing a factory worker
when a wall collapsed, flooding buildings and bringing traffic to a
halt. After months of hot, dry weather, the downpour filled up drains
and sewage pipes and swamped central Athens roads. REUTERS/Yannis
Behrakis REUTERS

YB 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Greek firemen and rescue workers search for survivors in a flooded
viaduct in central Athens July 8, 2002. Heavy rain and gales swept
across Athens on Monday killing a factory worker when a wall collapsed,
flooding buildings and bringing traffic to a halt. After months of hot,
dry weather, the downpour filled up drains and sewage pipes and swamped
central Athens roads. REUTERS/Yannis Behrakis REUTERS

YB 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. Greek firemen and rescue workers search for survivors in a flooded
viaduct in central Athens July 8, 2002. Heavy rain and gales swept
across Athens on Monday killing a factory worker when a wall collapsed,
flooding buildings and bringing traffic to a halt. After months of hot,
dry weather, the downpour filled up drains and sewage pipes and swamped
central Athens roads. REUTERS/Yannis Behrakis REUTERS

YB/FMS 

British soldiers, members of NATO extraction forces in Macedonia reinforce the last viaduct at a road connecting the Macedonian capital and the Kosovo border only a few kilometers away from the Blace border crossing March 17. Engineer units of the British 1st Battalion of the King's Own Royal Border Regiment finished preparing the route in advance of a peace mission to Kosovo.

NSO/CLH/