A long-running dispute over train guards has led to further rail strikes.
The RMT rail union said talks with Northern Railway had collapsed and staff would walk out on Saturday and on 13 and 20 October.
Union members working for South Western Railway began a 48-hour walk-out on Friday.
The strikes are expected to affect people attending the Liverpool Giants street theatre festival this weekend.
Northern Railway said it expected to run about 30% of services and remained “ready to talk”.
The RMT is demanding guarantees that guards will remain on trains and that the roll-out of “driver-only operation” is stopped.
General Secretary Mick Cash claimed Northern had shown a “pig-headed attitude” during talks at the conciliation service ACAS.
Northern’s deputy managing director Richard Allan said the RMT “unilaterally changed the basis of what they were prepared to talk about”.
The strike action would “only cause further unnecessary difficulty for customers”, he said.