The online edition of the Star newspaper quoted Penang state police chief Abdul Rahim as saying two men on a motorcycle threw Molotov cocktails into the compound of The Assumption Church early today. No one was injured.
The attack came after a banner was found hanging outside three Penang churches, including The Assumption, yesterday.
The banner read: "Allah is great, Jesus is the son of Allah." The churches have lodged complaints with police over the banner.