Liam O’Hanna, 27, is accused of breaking British law by waving a Hezbollah flag at a concert in London last November.

A member of the Irish rap group Kneecap has appeared in a London court over an alleged “terrorism” offence, as hundreds of his supporters gathered outside the building.

Liam O’Hanna, who performs under the name Mo Chara, entered Westminster Magistrates’ Court on Wednesday morning, a month after he was charged for allegedly waving a flag of the Lebanese armed group Hezbollah at a concert in the United Kingdom’s capital last November.

Under British law, it is illegal to display articles promoting banned groups like Hezbollah.

Kneecap, a Belfast-based group who rap in English but mostly in Gaeilge (Gaelic, the Irish language), have rejected the charge of “terrorism”.