Speaker casts deciding vote after dead heat - BBC News
Vote in the Commons defeated by one vote, after the Speaker cast a deciding ballot.
A vote in the House of Commons has been defeated by one vote after the Speaker John Bercow cast the deciding ballot.

MPs were voting on a motion to hold more indicative votes on alternative plans for Brexit but the result was tied with 310 votes for and 310 against.

Mr Bercow then voted "no" in accordance with precedent.