SANAA, July 31 (Xinhua) -- Up to eight prisoners escaped from a jail in Yemeni southern province of al-Bayda, the interior ministry said in a statement on Tuesday.
"Eight detainees over criminal charges in al-Bayda's city of Radda managed to break the prison cell's window and escaped from the jail early on Monday," said the statement.
It said that the ministry has distributed names and photos of the prisoners through all police checkpoints, and launched an investigation to probe the officials' involvement into the incident.
Yemen has seen a number of similar prison break over the past months due to fragile security situation caused by security vacuum that resulted from a year-long popular protests.
In June, 15 convicted al-Qaida detainees escaped from prisons of political security agency in the southern port city of Aden and northwestern port city of al-Hodayda.
Restoring security situation and combating terrorist militants are main challenges confronting transitional President Abd-Rabbu Mansour Hadi, who has promised to launch a national dialogue to settle disputes among all political factions and uproot the Yemeni branch of al-Qaida.