Renewed Scrutiny for Mosque in Spain After Foiled Train Attack

ALGECIRAS, Spain — Before he boarded a Paris-bound train last week, armed with an assault rifle and intent, the authorities say, on carrying out a blood bath, Ayoub El Khazzani had spent the final chapter of his troubled time in Spain in this gritty port city, living in a run-down apartment block with his parents within walking distance of the local mosque.

The mosque, Taqwa, was under police surveillance from the first day work started on turning what had been an auto repair shop into a place of worship, Nordi Mohamed Ahmed, vice president of the association that runs the mosque, acknowledged in an interview.