RIYADH, Saudi Arabia, April 18 (UPI) -- Saudi security forces arrested five suspected al-Qaida members closely linked to a foiled attempt to bomb oil installations in eastern Saudi Arabia. A security source said one of the detainees figures on a list of 36 wanted terrorists released by Saudi authorities last June. An interior ministry source said police discovered last week the suspects' hideout in a warehouse in Riyadh where they seized explosive materials, assault rifles and ammunitions, in addition to three cars. He said communication equipment, cameras, a computer and video tapes as well as false car plates were also...