A guard at Jerusalem's Western Wall holy site shot and killed an Israeli man this morning, thinking he was a Palestinian militant. The guard heard the man yell "Allahu Akbar," or "God is greatest" in Arabic, the BBC reports. "The fact he shouted Allahu Akbar, that seems to be why the security guard drew his weapon and fired a number of shots at him," a police rep said, per Reuters. The victim was also reportedly spotted pulling something out of his pocket as he left a public restroom nearby. Hundreds were visiting the wall for morning prayers; the site closed after the shooting.