DEARBORN, Mich. -- Dearborn police are investigating what they called hate graffiti spray-painted on the wall of an Islamic Center in Dearborn.

According to police, vandals spray-painted "You idol worship" and "Go home 911 murderers," across an entire wall of the building.

Six businesses were also damaged with broken windows over the weekend.

Islamic leaders are urging mosques and businesses to step up security.

Earlier this month, two nearby mosques and a number of Muslim-owned businesses were targeted by similar acts of vandalism. There have been no arrests in any of the incidents.

Anyone with information about the vandalism should call Dearborn police.