KIDAPAWAN CITY - Tension gripped the North Cotabato District jail here on Friday after inmates resisted an anti-drug inspection, police said.
The prisoners will not allow the search until they are assured that they will not be harmed by allowing media to join the raiding team, one of the inmates said.
They also demanded the restoration of visiting rights for their families.
A similar operation codenamed "Greyhound" in Cebu last month, saw inmates get stripped down to their underwear as police seized million of pesos in cash and illegal drugs.
Police commandos and jail guards were on standby outside the jail facility.
Soldiers placed mortar rounds outside the jail to thwart a reported plan by a rebel group to attack the facility, said Jail Superintendent Peter Bongngat.
The North Cotabato district jail can house up to 700 inmates but currently has a total of 1,400 inmates. -- reports from Lore Mae Andong, ABS-CBN News