JAMESTOWN (AP) - Jamestown police say they're investigating three reports in which women were drinking at bars, passed out and at least two of them had sex without their knowledge.

Police Chief Dave Donegan says date rape drugs may have been involved. He says the incidents occurred in the last several months.

Donegan says the third woman got sick after drinking and was taken home, but she has no memory from about 1 a.m. to 9 a.m. that day.