This comes after the incident in which a busload of Kedah football supporters were pelted with stones at Jalan Datuk Keramat, here.

Northeast Police chief Mior Faridalatrash Wahid said the incident was promoted on Facebook and that police would not compromise on public order nor tolerate hooliganism.

“We are monitoring several Facebook accounts for spreading hatred among football supporters. Stern action will be taken according to the provisions of the law,” he said when contacted, here today.

On Tuesday, a group of men on motorcycles believed to be Penang football fans threw stones at a bus carrying Kedah supporters after the Super League match which saw Penang beat Kedah 3-2.

Yesterday, police arrested six men suspected of being involved in the incident, aged between 16 and 40. The six were remanded for four days from today, to facilitate investigations.