UK lawmakers to vote on proposed gay marriage bill; scores of Conservatives expected to revolt

LONDON - A gay marriage bill that has divided Britain's Conservative Party but is backed by its leader, Prime Minister David Cameron, is being debated in Parliament in advance of a vote.

The bill would enable same-sex couples to get married in both civil and religious ceremonies, provided that the religious institution consents. The Church of England, the country's official faith, is barred from performing such ceremonies.

The bill would also allow couples who had previously entered into civil partnerships to convert their relationship into a marriage.

Dozens of Conservative lawmakers are expected to vote against the proposed bill later Tuesday, but it is expected to pass with support from the vast majority of lawmakers from the left-leaning Labour Party and Liberal Democrats.