VALLETTA, MALTA: Joseph Muscat was sworn in for a second term as Malta's prime minister Monday, pledging to introduce gay marriage as law when Parliament convenes in the next few weeks.

Official results showed his Labour Party won 55 percent of the vote Saturday to the opposition National Force coalition's 44 percent, the same margin as his first victory in 2013.

Muscat called the snap elections a year early to consolidate his government after the Panama Papers leak indicated his wife owned an offshore company. They deny wrongdoing.

The Panama Papers leak exposed identities of the rich and powerful around the world with offshore holdings in Panama, including also Muscat's energy minister - who was re-elected in Saturday's election - and chief of staff.

Socially conservative Malta introduced civil unions in 2014.