Former Scottish Labour leader Kezia Dugdale has quit the party over its stance on Brexit, it has been confirmed.

Ms Dugdale terminated her membership in July - shortly after standing down as an MSP - and reportedly did not vote for the party in May's European election despite still sitting at the time. 

She became Scottish Labour leader in August 2015, after Jim Murphy quit in the wake of a disastrous general election campaign which saw the party lose all but one of its seats.

READ MORE: EU may refuse Brexit extension without general election or second referendum

Ms Dugdale has been a prominent and vocal critic of Labour leader Jermey Corbyn, particularly surrounding his position on Britain exit from the European Union, describing herself as "proudly European".

Ms Dugdale resigned from the role in 2017 after two years in the post, with the left-winger Richard Leonard voted in as her successor.

READ MORE: What will happen if UK crashes out of EU without a deal on October 31?

She sat as an MSP until June of this year, when she left politics to take a job with the John Smith Centre at Glasgow University.

A spokesman for the Scottish Labour Party confirmed Ms Dugdale is no longer a member of the party.