Two explosions hit Uganda’s capital Kampala on Tuesday, injuring some people in what police termed “an attack” on the city, the latest in a string of blasts targeting the country.

“What we can say (is) this was an attack but who is responsible is a matter that is under investigation,” Uganda’s Assistant Inspector General of police Edward Ochom told AFP.

“The explosions took place near the Central Police Station and another took place near the entrance to Parliament, all in the central business district,” he said, adding that the injured had been taken to hospital.

The explosion near the police station shattered windows while the one near the entrance to parliament saw cars parked nearby burst into flames, he added.

The two explosions follow a 23 October bomb attack at a restaurant in Kampala, in which at least one person was killed.

The so-called Islamic State group later said it had carried out the attack.

Currently, 24 people have been hospitalized while four are feared dead.