Uh oh...Human rights campaigner Peter Tatchell disrupted a speech by Jeremy Corbyn in protest over Labour's response to Syria.
As the opposition leader began a speech on human rights, demonstrators stood in front of the stage and held up banners calling for immediate air drops in the war-torn nation.
As Tatchell spoke, you can hear Corbyn calling "Peter!", to try to get the kerfuffle to end.
It was all very awkward.
Tatchell has previously criticised the Labour leader for failing to speak out loudly enough against Russia, which is propping up Bashar Assad's brutal dictatorship.
He has also criticised the Stop the War coalition Corbyn previously headed for opposing Western military action while failing to protest against the Syrian regime.