A knife attacker has forced staff at a petrol station in Bristol to hide inside a safe room after getting into the shop.
One person has been taken to hospital after leaving the petrol station in Hengrove Way, Avon and Somerset Police said, adding armed officers and a negotiator were at the scene.
The force added: “A man armed with a knife is inside the shop of the petrol station.
“Staff members are uninjured within a safe room and in contact with officers.
“One person has left the scene and gone to hospital with injuries not believed life-threatening.
“Armed officers and a negotiator have been deployed to try to bring the incident to a safe conclusion.
“Members of the public are urged to avoid the area.”
Officers were called at 7:36am on Thursday and were at the scene by 7:41am, police added.
The incident has also caused major delays to bus services in the area.
First West of England tweeted that bus services are delayed and services are “terminating and starting their journey from skills centre until further notice.”