Cameron urged to delay gay marriage vote scheduled for this week

LONDON (REUTERS) - Members of British Prime Minister David Cameron's Conservative party urged him on Sunday to delay a parliamentary vote this week on gay marriage, warning the issue could weaken the party and harm his chances of re-election.

Cameron has pledged his personal support for a gay marriage bill but many in his party and among his legislators oppose it on moral grounds and say the government has no mandate to push it through parliament.

As the bill is supported by Britain's two other main parties, opposition Labour and Conservative coalition partners the Liberal Democrats, it is in no danger of being defeated.

But a letter signed by 25 past and present chairmen of local Conservative associations was handed in to Cameron's Downing Street residence on Sunday afternoon by six of the signatories.