UK Foreign Office minister Baroness Sayeeda Warsi has resigned from government, saying she can "no longer support" its policy on Gaza.
She told her Twitter followers that she was leaving with "deep regret". She was previously chairman of the Conservative Party.
Lady Warsi became the first female Muslim cabinet minister when David Cameron took office in 2010. She was demoted from the cabinet to a middle-ranking FCO post in 2012 and became minister for faith and communities at the same time.
She tweeted on Tuesday morning: "With deep regret I have this morning written to the Prime Minister & tendered my resignation. I can no longer support Govt policy on #Gaza."