Uganda's President Yoweri Museveni, fresh from winning a seventh term at the age of 81, said on Sunday that the opposition were "terrorists" who had tried to use violence to overturn results.

Official results showed Museveni winning a landslide with 72 percent from Thursday's election, but the poll was criticised by African election observers and rights groups due to the heavy repression of the opposition and an internet blackout.

The whereabouts of opposition leader Bobi Wine, real name Robert Kyagulanyi, who won 25 percent, were still uncertain after he said on Saturday that he had escaped a police raid on his home and was in hiding.

Police denied the raid and said Wine was still at home, but blocked journalists from approaching the residence.

Wine has not posted on X since Saturday when he denounced the "blatant theft of the presidential election."

In his victory speech on Sunday, Museveni said Wine's party, the National Unity Platform (NUP), had planned to attack polling stations in areas where they were losing.

"Some of the opposition are wrong and also terrorists," said Museveni, who has ruled the east African country since 1986, when he seized power at the head of an rebel army.

"They are working with some foreigners and some homosexual groups," he said.

He added: "All the traitors – this is free advice from me – stop everything, because we know what you are doing and you will not do it."

Although some internet was restored late on Saturday, the government said it would maintain a ban on social media platforms until further notice.

The government blocked the internet two days before the vote, saying it was necessary to prevent "misinformation" and "incitement to violence."

Uganda has remained largely peaceful since the results, though there were small-scale protests late on Saturday, with witnesses saying tear gas was fired in parts of the capital Kampala.

The security presence was significantly reduced on Sunday, with people out on the streets and shops open. (AFP)