Tracker shows English and French vessels in Channel during migrant rescue operation

An online tracker shows French and English vessels in the English Channel off the coast of Dover during a migrant rescue operation.

At least four people have died after the small boat failed amid freezing conditions, according to the British government.

English authorities were first alerted to the incident at around 3:40am on Wednesday morning, 14 December.

More than 43 migrants have been rescued from the boat as emergency crews continue to work to save those who were aboard.

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