New York train crash investigation begins
Emergency workers at the site of the Bronx train crash have been given approval to turn derailed carriages upright to search for any further victims.
The Metro-North 05:54 from Poughkeepsie to Grand Central Station overturned on a bend near a station, killing at least four people and injuring more than 60 others.
The National Transport Safety Board's Earl Weener said his teams would be on site for several days documenting "perishable evidence".
01 Dec 2013