Four members of Al Qaeda who were planning attacks in Yemen's capital Sanaa were arrested on Saturday in possession of powerful explosives, the interior minister said. "The security services have today arrested in Sanaa a cell of four terrorists with links to Al Qaeda who were planning terrorist attacks" in the capital, Interior Minister General Rashad al-Alimi told a news conference. The four men, he added, were found with 200 kilogrammes of explosives and were likely connected to foiled twin suicide bombings against oil installations on Friday. The bombers, in explosives-laden cars, tried to attack an oil refinery in Maarib.