Sana’a: The Yemeni Ministry of Interior denied Friday  reports that a group of separatists escaped from a prison in the southern city of Al Dhale'e.

“The reports are untrue and baseless,” the ministry said in a statement, calling the media to be more accurate and credible.

However, the statement said, that the security forces arrested about 20 men, some of them armed, who were participating in unlicensed demonstrations.

"One them of them, Fawaz Saleh Besbas, threw a hand grenade inside the yard of the prisons injuring 6 people," the statement said.

Those injured were taken to the hospital, the others were kept in custody for charges of making riots, and none of them escaped, the statement said.

Earlier, the local sources from Al Dhale'e said that about 30 men escaped from the prison after the hand grenade went off inside the yard of the prison.

Meanwhile, official sources confirmed that a soldier was killed and another was injured when armed demonstrators calling for separation clashed with the security forces in Al Habileen, Radfan.

The security forces dispersed the unlicensed anti-unity demonstration, which raised the flag of separation and pictures of the former president of the south, Ali Salem Al Baidh.