Sungai Besar Umno chief Jamal Md Yunos and nine others have been arrested by police over alleged gang robbery.

Selangor CID chief Fadzil Ahmat said this was in relation to raids Jamal conducted on what he claimed to be gambling dens in Taman Kosas, Ampang on Dec 29.

"These places were licensed as family entertainment outlets, they had permits from the Ampang Jaya Municipal Council (MPAJ), but his claims that they were gambling dens are another matter.

"We received several reports that some people had lost their belongings during these raids, so that's what we are investigating," Fadzil told Malaysiakini.