SINGAPORE, July 31 -- British trip-hop band Massive Attack's Singapore concert has come under official scrutiny after members displayed a Palestinian flag on stage during their performance on July 29.

Concert promoter Lushington confirmed to The Straits Times that it is aware of reports regarding the show held at The Star Theatre.

"We will fully cooperate with the relevant authorities as required," Lushington was quoted as saying.

Singapore police said reports had been lodged over the incident and investigations were ongoing.

The Infocomm Media Development Authority also said it was looking into a possible breach of licence conditions.

A video circulating on social media platforms showed two band members holding up a Palestinian flag...