RMT union reveals more walk outs on Northern Rail
Northern rail has described the latest announcement of strike action as disappointing and frustrating.
The RMT union members will walk out for three dates - starting with the 25th of August.
It's part of a long running dispute over the future role of guards.
The company says it comes despite them proposing and entering into a joint working party with RMT on the future of the on board role.
It's also proposed a further day of talks next Friday.