Police are investigating a fire in a barn in Berkshire after fire investigators told them it was started deliberately.
A nearby army base was evacuated due to fears an acetylene cylinder could explode in the fire last Thursday.
Fire crews set up a 200m (656ft) cordon around the barn in Priors Court Road, Hermitage, near Chieveley.
Police said they were making door-to-door inquiries, and the investigation was ongoing.
The fire destroyed the barn. A special robotic vehicle was brought from London to go into the barn to check the cylinder was safe.