Morocco ? Two brothers strapped with explosives blew themselves up near an American cultural center Saturday, and police arrested another three suspects – including one wearing an explosives belt – hours later, an official said.

The attacks came just days after three suspected militants blew themselves up as they were cornered by police in Casablanca, and al-Qaida claimed suicide car bombings in neighboring Algeria that killed 33 people. The attacks have stoked new fears of Islamic terrorism in North Africa – especially in Morocco, long known for its stability.

The Moroccan and Algerian governments have not addressed an al-Qaida link or inspiration in the bombings earlier this week. Both countries have allied themselves with the United States in its fight against terrorism.

Saturday’s two bombers detonated their explosives in the middle of a boulevard that runs behind the American Language Center, killing themselves and wounding a woman, the official said, adding that the three suspects were arrested in the neighborhood, which is dotted with high-rises, hotels and diplomatic missions, including the U.S. consulate.