A group of 10-15 activists have barricaded themselves on the third floor of the Royal Institute of Technology (KTH) student union house in Stockholm.

The protest is against the war in Gaza and KTH's collaboration with Israeli institutions.

Police have entered most of the building but are unable to reach the room where the masked activists are hiding.

The entire building is being evacuated, while a crowd outside shouts pro-Palestinian slogans.

The incident follows a recent pro-Palestinian demonstration at the KTH campus.