Keir Starmer, Labour Party's Shadow Secretary of State for Departing the European Union, is seen during Jeremy Corbyn's speech on Brexit in Wakefield, Britain, January 10, 2019. REUTERS/Phil Noble

LONDON (Reuters) - If Prime Minister Theresa May presses on with her Brexit deal after lawmakers vote to delay Britain’s exit, parliament will have to look at other options, the opposition Labour Party’s Brexit spokesman Keir Starmer said on Wednesday.

Lawmakers are expected to be given a vote on Thursday on whether they want to seek an extension to the Article 50 negotiation period. The EU have said any extension would need a purpose.

“She will have to make decision of whether that is the point at which she drops her red lines and her blinkers and opens up the debate to other options,” Starmer told parliament.

“If she presses on with her own deal I think we still have to go on and look at other options and get a common purpose.”