The last of the ten prisoners who escaped from a Western Australian jail after using an angle grinder and ladder have been found, just two days after the escape.

Missing inmate Bradly Silvester was found yesterday in Glenfield, 25km away from the Greenough Regional Prison.

On Tuesday prison officers extinguished a cell fire which was started as a diversion.

The cost of the escape and riot is estimated to be at least $2 million.