Yemeni authorities on Monday arrested a 22-year-old male believed to have been responsible for an attack on a US-owned language school in capital Sanaa. The interior ministry said that the motorcyclist had failed in an attempt to detonate a bomb outside the building on Sunday. Security forces detained the man in question, and seized his motorcycle on Monday morning. On Sunday, assailants bombed a Yemeni airforce bus in Sanaa, killing three and injuring 26 soldiers.