A homophobic mob reportedly hurled rocks and home-made bombs at a same-sex wedding involving a British Red Cross worker in Port-au-Prince.
The US Supreme Court has ruled married gay couples should be entitled to the same benefits as heterosexual couples.
The introduction of gay marriage moved another step closer to becoming law after legislation cleared a major hurdle in the House of Lords.
The Prime Minister is facing fresh calls to halt his plans to allow gay marriage by a group of religious leaders, who argue the legislation is being rushed through parliament without proper debate.
In a letter to the Daily Telegraph, signed by 61 religious leaders, it said:
The haste with which this legislation is being driven through Parliament and the failure to talk to all religions will mean that the problems which we have repeatedly highlighted will be written into law with serious and harmful consequences for the health of society, family life, and human rights such as freedom of religion and of speech.
Dismissing safeguards in the proposed law as insufficient, they continued: "It is surely clear that there are significant problems with this legislation which require further scrutiny and probably amendment.
We therefore urge you to pause so that this may take place.
Because of its serious flaws we will continue to resist this proposed legislation and to highlight its injustice and unfairness. It creates a two-tier form of marriage in one of which the importance of consummation, procreation and the welfare of children, as well as issues such as adultery have been ignored, and devalues the meaning of marriage itself.
A letter to the Daily Telegraph, signed by 61 people describing themselves as "leaders of Britain's major faiths", said the controversial legislation was being rushed through Parliament without proper debate.
Christian, Jewish, Muslim, Hindu and Buddhist figures were among those behind the appeal for a "pause".
The Marriage (Same Sex Couples) Bill arrives in the Lords on Monday for the start of what is expected to be a stormy passage through the upper chamber.
It survived a Commons backlash when 130 Tory backbenchers opposed the move.
Bishop Michael Hill, the Anglican Bishop of Bristol, Archbishop Bernard Longley, the Roman Catholic Archbishop of Birmingham and Bishop Angaelos of Britain's Coptic Orthodox Church, were among signatories.
Hundreds of thousands opponents of same-sex marriage have marched through central Paris against a reform the unpopular French government passed last month.
Large park grounds around Les Invalides monument were full of protesters waving pink and blue flags, while far-right activists clashed with police at the end of the march.
Turning to Culture Secretary Maria Miller shortly before the vote, shadow minister for women and equalities Yvette Cooper said:
"We can only wonder what would happen if you and I leapt up and started leading a Eurovision-style chorus perhaps of congratulations perhaps Abba-style, maybe not 'One Man, One Woman' but certainly 'I Do, I Do, I Do'.
"I have heard Conservative members talk about the anger in their constituencies. And I hope they will now be able to stop talking about the anger and start talking about the joy. Because this is about the joy that we can deliver to those that want to get married just as their parents did.
"Let's be loud and proud, let's start the singing. Let's celebrate, not discriminate. Let's put aside the anger and hear it for the joy."
Conservative Culture Secretary Maria Miller said today's vote was "the right thing."
Just won Third Reading vote of Equal Marriage Bill - After all the hard work, its moment to be proud of. It's the Right Thing #EqualMarriage
Bridget Phillipson is a Labour MP:
Proud to have voted for #equalmarriage this evening & that legislation a step closer
Simon Wright is a Liberal Democrat MP for Norwich South:
Strong majority for #samesexmarriage in House of Commons tonight and a victory for equality.
MPs tonight voted by 366 to 161, majority 205, to legalise gay marriage by giving the Government's controversial Marriage (Same Sex Couples) Bill a third reading.
Conservative MP Sir Tony Baldry has warned that an amendment to the controversial Marriage Bill could pave the way for pagan, masonic and even jedi wedding ceremonies.
Sir Tony Baldry, who represents the Church of England in the House of Commons, warned that voters would think the Conservatives had "lost the plot" if they allowed the amendment to go through.
– Sir Tony Baldry, conservative
I can't speak for other MPs, but I have had enough problems in my constituency with same-sex marriage.
If I go back to the shires of Oxfordshire and tell them that Parliament's now about to endorse in England pagan marriage they'll think that we'll have lost the plot completely.
Liberal Democrat MP Stephen Williams proposed an amendment which would allow humanists to conduct marriages during the second day of debate over the Same Sex Couple Bill.
He insisted it would not pave the way for other minority groups to conduct marriages.
Boris Johnson has urged speedy action on same-sex marriage, saying: "Get it on the statute books and get on with it."
The Mayor of London also called on fractious Tories to train their guns on Labour following the recent reports of unrest among the party's backbenchers and grassroot members.
Conservative MP Tim Loughton has described yesterday's divisions over plans to legalise gay marriage as a "grubby deal" between the front bench and the Government.
He said: "I think the Labour party have been suckered into thinking it's going to be more immediate review than it actually is."