Aden, Yemen ? Four suspected al-Qaida members who were plotting attacks for Yemen’s capital were arrested Saturday, a day after security forces foiled near-simultaneous attempts to blow up two oil installations, authorities said.

Interior Minister Rashad Rashad al-Eleimi said the suspects had links to the four suicide bombers who tried to strike the oil installations Friday but were killed during the attacks.

Security forces confiscated 12 bags each containing about 88 to 110 pounds of highly explosive material Saturday as well as masks and women’s clothing, which militants use to disguise themselves, al-Eleimi said.

He said the four arrested men planned to stage attacks on Yemeni and foreign targets.