The Ugandan capital of Kampala has been the target of a suicide bombing that has killed at least 3 people and injured more than 30 others.

The blast occurred near the city’s parliament and police headquarters where three attackers on motorbikes were seen blowing themselves up.

Officials are suspecting the Congo-based Allied Democratic Forces to be behind the attack.

The group is yet to confirm or deny the allegations

An army spokeswoman says the tactics used by terrorists continues to change with suicide bombings being the next new step.

Officials say the attacks came within three minutes of each other with more bombs having been found in other parts of the city.

A police spokesman says “the bomb threats are still active, especially from suicide attackers”.

Police have announced the arrest of a fourth attacker and the recovery of an explosive vest.