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Labour leader Sir Keir Starmer has sacked his junior shadow transport minister who joined striking rail workers on a picket line.

Ilford South MP Sam Tarry attended the protest at London's Euston station despite Sir Keir saying his frontbench MPs should stay away.

Speaking to reporters, Mr Tarry said "any Labour MP" would have "absolute solidarity with striking workers".

Labour said he had been fired for making unauthorised media appearances.