A search is taking place for a helicopter that failed to arrive at its destination in Cambridgeshire early on Wednesday morning.
The aircraft took off from John Lennon Airport, Merseyside, at 2300 BST on Tuesday and the last contact was made with it just under two hours later.
The helicopter was carrying four people to Thornhaugh, west of Peterborough.
Cambridgeshire Police said a search had resumed after an earlier operation was called off because of poor visibility.
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