The Governor of New York, Andrew Cuomo, has told CNN that the site where the North-West train derailed was "a dangerous area on the track just by design".
The trains are going about 70 miles per hour coming down the straight part of the track. They slow to about 30 miles per hour to make that sharp curve ... where the Hudson River meets the Harlem River and that is a difficult area of the track.
More top news
Defence saving plans raise "serious doubts" over the Ministry of Defence's ability to pay for new equipment, including warships and planes.
One firefighter has been killed and more than 700 homes destroyed in the 404-square-mile Thomas Fire.
Theresa May has said there is "no place in our politics" for intimidation after Tory Brexit rebel MPs received death threats and abuse.