Although no one was killed or injured, the explosion aboard a bus in Israel on Sunday was a "terrorist attack," police said.
"After examining the explosives retrieved from the scene, we have concluded that this was a terrorist attack," police spokesman Micky Rosenfeld told AFP.
A bomb specialist had been called to examine a suspicious object found on an empty bus near Tel Aviv. As the expert was examining the object, it exploded. The examiner was not injured.