Armed police have surrounded a house on a Sheffield street.
Officers, armed with machine guns, arrived at the scene on South View Road in Sharrow at around 3.20pm today.
A picture sent to The Star by a resident shows armed officers pointing their weapons towards a house on the estate.
The details of the operation are unknown and a spokesman from South Yorkshire Police refused to comment on the incident.
This is an ongoing story and we'll bring you more as we get it.