Yvette Cooper makes a speech in support of her Labour Party leadership campaign at 10 Greycoat Place, London, as the final line-up of candidates in the Labour leadership election will become clear when nominations close for the contest to succeed Ed Miliband at the helm of the Opposition. PRESS ASSOCIATION Photo. Picture date: Monday June 15, 2015. Shadow health secretary Andy Burnham, shadow home secretary Yvette Cooper and shadow health minister Liz Kendall are all set for a place on the ballot paper having each secured more than the minimum 35 formal endorsements from MPs. See PA story POLITICS Labour. Photo credit should read: Jonathan Brady/PA Wire

A British Labour Party MP received a message via micro-blogging website Twitter which threatened the lives of her children and grandchildren.

Yvette Cooper, a former Cabinet minister and MP for MP Normanton, Pontefract and Castleford, said she received the message on Tuesday, BBC reported.

The comment accused her of sending pro European Union (EU) “propaganda”, adding “Please stop or I will kill your kids and grandkids”.

The account from which the message was sent now appears to have been removed, police said.

The incident comes amid increased security for MPs following the death of Labour MP Jo Cox last week.

Cox died after being shot and stabbed in an attack in Birstall near Leeds on June 16.

A 52-year-old man has been charged with her murder.

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