Up to 43 people have been killed in an attack on a church and homes in the Democratic Republic of Congo carried out by a group linked to Islamic State.

Fighters for the Allied Democratic Forces (ADF) gunned down around 20 worshippers participating in a night vigil, according to local officials in Komanda, a town in the north-east of the country.

They also looted and set fire to various nearby shops and businesses and razed several homes to the ground, the BBC reports.

Dieudonne Duranthabo, a civil society coordinator in the town, suggested that more bodies could yet be found following the merciless attack.

He said: 'More than 21 people were shot dead inside and outside [the church] and we have recorded at least three charred bodies and several houses burned.