Ugandan President Yoweri Museveni said on Sunday the blast that killed at least one person and injured seven others in the capital Kampala on Saturday appears to have been a "terrorist act."

"It seems to be a terrorist act but we shall get the perpetrators," he said on Twitter.

"The Police Specialists are on the ground investigating the whole incident. They will give us more information later. They will also give guidelines on vigilance by the Public dealing with these possible terrorists."

The explosion that occurred at Digida Pork Joint, a local restaurant, left revelers in shock, with videos shared on social media showing police officers at the scene soon after.

Last week, the United Kingdom and France issued advisories warning their citizens of a likely attack.

The Ugandan police have asked the public to remain calm, as investigations continue to establish the circumstances surrounding the incident.

President Museveni echoed this call, urging Ugandans not to fear.

"The public should not fear, we shall defeat this criminality like we have defeated all the other criminality committed by the pigs who don't respect life," he Tweeted.