Police in South Sudan say at least 10 people have now died after a hand grenade exploded in a club on Friday night in the western town of Yambio, news agency Reuters reports.
Dozens were injured in the attack but six who were in critical condition have been moved to a hospital in the capital, Juba, police chief James Monday Enoka said.
Mr Enoka said that someone threw “a hand grenade into a club where 500 people were dancing and police found four people dead on [the] spot,”
Some reports say the suspected culprit was a jealous lover.
Mr Enoka said the incident was “an isolated criminal act” and was not related to the civil war that has crippled the country since it broke out in 2013.
President Salva Kiir and his former deputy Riek Machar recently signed a peace deal to end the conflict which has so far killed tens of thousands of people and displaced millions.