LONDON, May 12 (Reuters) - British Prime Minster Keir Starmer told a meeting of his cabinet on Tuesday that he was not quitting, Starmer's office said.

"The Labour Party has a process for challenging a leader and that has not been triggered," the statement said.

"The country expects us to get on with governing. That is what I am doing and what we must do as a Cabinet.

"The past 48 hours have been destabilising for government and that has a real economic cost for our country and for families."

(Reporting by Elizabeth Piper and Sarah Young, writing by William James)