Prison officers have walked out today over health and safety fears.
The Prison Officers Association has ordered its members to take part in a day of industrial action after talks with the government broke down.
Workers at prisons across England and Wales, including in Rochester, Maidstone and the Isle of Sheppey, will not be working.
The POA says as many as 10,000 staff will effectively be striking, with only emergency cover provided.
The protest has been called after a series of escapes and attacks on inmates and staff at prisons across the country.
This morning, workers could be seen holding a demonstration outside the cluster of prisons on the Isle of Sheppey, which comprises HMP Elmley Standford Hill and Swaleside.
Dave Cook, POA chairman for HMP Swaleside, said: “Going on strike is never an easy decision, especially for prison officers, but we have been driven to this because our health and safety at work has been ignored for many years.