Lantau police have arrested a 40-year-old woman over suspected arson of the Tung Chung office of Islands District Councillor Bill Tang Ka-piu.

Tang’s Yat Tung office was twice set alight yesterday afternoon, local media have reported.

In the first incident at around fire brigade was called after receiving a report at around 3:30pm that the office entrance was on fire.

Another attempt to light the door was made at 5:15. Police went to the scene and seized newspapers and a beer can.

The office, which was unattended because of the public holiday. suffered minor damage.

CCTV had shown a person loitering around the doorway at around 3:15 to 3:30 and had set alight a black plastic bag in the doorway.

Police later arrested a Thai national in Tung Chung. A spokesman said she has a history of mental issues and suicide attempts and has been sent to Princess Margaret Hospital psychiatric assessment.

Anyone who has information on the case is urged to contact the Lantau Criminal Investigation Team at 3661-1941 or 3661-1940.

Tang has been a District Councillor since 2008. He was Legco functional constituency member on behalf of the pro-Beijing Hong Kong Federation of Trade Unions from 2012-2016.

Photos: Bill Tang Ka-piu Facebook