NEW YORK - Prime Minister Lee Hsien Loong on Monday (March 29) visited the memorial and museum commemorating the September 11, 2001 terror attacks in New York. Mr Lee placed a bouquet of white flowers at the south pool of the memorial and observed a moment of silence before embarking on a tour of the museum.

The memorial - two large pools set in the original site of the World Trade Center towers - were opened to the public in 2011. The accompanying underground museum, which includes many artefacts from the attacks, were completed three years later.

The exhibits in the 110,000 sq ft museum include the mangled steel structures from the towers, a staircase that many used to flee from the buildings and a brick chiseled out of the house in Pakistan where Al-Qaeda leader Osama bin Laden was shot.

PM Lee will complete his visit to New York on Wednesday (March 30), then head to Washington, DC for a 4th Nuclear Security Summit.

The summit brings together over 50 leaders from around the world to discuss how to deal with the threat of nuclear proliferation.