A "large" police presence is currently on the scene in the Southcote Lock area of Reading .

Eye-witnesses say at least five units from Thames Valley Police are on the scene in the Circuit Lane and Southcote Lock area of the town.

An emergency services helicopter can be seen and heard flying above the area. It is believed to be a helicopter deployed by Thames Valley Police.

South Central Ambulance Service are also believed to be on the scene.

It is not yet known why emergency services have been called to the scene.

All emergency services including police and ambulance service have been contacted for more information.

You can follow the latest updates as we get them in the live blog below.