Both members of the British trip-hop group Massive Attack have been permanently barred from re-entering Singapore after displaying a Palestinian flag during a concert in the city-state, authorities said. In a joint statement, the Singapore Police Force and the Infocomm Media Development Authority (IMDA) said they investigated the two band members for their actions at the show. The incident involved the unfurling of a Palestinian flag and shouting "free Palestine" during the performance. The band responded with surprise and disappointment, saying they were unhappy with how they were treated over the incident. The permanent ban means the duo will not be allowed back into Singapore in the future. The authorities did not provide further details about the investigation or the exact date of the concert.