Four Yemenis carrying explosives and guns were arrested near the US embassy in San'a, the Interior Ministry said Tuesday.
The Ministry's statement didn't say when they were arrested. But senior security officials told The Associated Press last week they were on the look out for possible attacks against foreign interests in San'a.
The ministry said the four, aged between 20 and 33, had grenades, automatic weapons and ammunition in two separate vehicles. The men were residents of the northern town of Damag, home to one of the country's largest radical Sunni Islam teaching institutions, frequented by Yemeni, Arab and foreign clerics.