New York train crash: Probe into crash cause begins

The US authorities have begun an investigation into the causes of Sunday's train crash in the Bronx area of New York in which four people were killed and more than 60 injured. via Pocket http://www.bbc.co.uk/news/world-us-canada-25182076#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa