The terrorist militia Islamic State (IS) has claimed responsibility for an attack in Uganda's capital, Kampala, which killed six people.

Three suicide bombers set off explosives in two places in the city center, as police spokesman Fred Enanga announced at a press conference.

The attackers were among the dead;

33 other people were injured.

The IS confessed to the attack on Tuesday evening via the digital messenger service Telegram.

The militia alleged that they also killed police officers in the attack.

According to the police, the perpetrators belonged to the Islamist Allied Democratic Forces (ADF), an IS branch that was classified by the US government as a terrorist organization in March.

Disguised as a motorcycle messenger

The first explosion occurred at 10.03 local time (08.03 CET) near the central police station in Kampala, the police said.

Three minutes later, two more assassins, disguised as motorcycle messengers, are said to have detonated the next explosive devices near the parliament.

Another suspect was arrested and led the police to a bomb.

It had been defused, said Enanga.

Footage of burning vehicles and clouds of smoke were shared on social media.

According to media reports, people were thrown to the ground by the violent explosions.

The parliamentary sessions have been suspended until further notice.

Many streets in the city are said to be closed.