Ugandan musician and presidential aspirant Bobi Wine has been charged with intending to annoy, alarm or ridicule President Yoweri Museveni.

The new charge is an addition to a previous charge of treason.

In an alleged incident that led to his arrest, the MP and his colleagues were accused of hurling stones at the presidential convoy during an election rally in the northern town of Arua in 2018. If convicted, Wine faces up to life in prison.

Wine and many of his colleagues said that they were tortured while in detention, a claim the authorities denied.

Wine, whose real name is Robert Kyagulanyi, is still facing charges in another court, for staging a protest against a law that imposed a tax on mobile money transactions and use of social media in August 2018.

Since the 37-year-old musician-turned-MP announced that he will stand for president in the 2021 election, he has become an opposition force against President Yoweri Museveni who has been in power since 1984.

The charge sheet says that Bobi Wine and his co-accused “wrongfully restrained” the president by “refusing to give him right of way” when he was travelling in northern Uganda’s Arua area in August 2018 to campaign for a ruling party candidate in a by-election.

This showed “intent to alarm, annoy or ridicule” Mr Museveni, the charge sheet says.

Bobi Wine has been placed under house arrest several times, prompting Angelique Kidjo and other music stars to sign a petition last year to free him.