KINSHASA - A grenade explosion in the city of Goma in eastern Democratic Republic of Congo killed one person and injured more than 20, the latest of a string of deadly attacks in the area, officials said on Tuesday.

Goma is the provincial capital of North Kivu province and is under threat from a rebellion that has so far kept mainly to the surrounding hills and smaller towns.

"Unidentified individuals threw a grenade in the crowded Mapendo district, causing 22 injuries, one of whom died during the night," Colonel Edouard Simon Makiadi told Reuters by telephone.

A second grenade was also thrown but did not explode, according to Makiadi.

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