David Hart, 22, imprisoned for one year over nuisance calls to London hospitals and Westminster Abbey

A man has been jailed for a year in New York for calling in a series of hoax bomb threats, many of which targeted institutions in the UK.

David Hart was prosecuted by US authorities after a joint investigation by Scotland Yard and the US department for homeland security.

In recordings of some of the calls, released by the Met police, Hart can be heard asking a call handler what they would do if he had “put a bomb in Guy’s Thomas hospital”.

The call was an apparent reference to two separate sites in London that are managed together by Guy’s and St Thomas’ NHS foundation trust.