A Tube workers' union has suspended industrial action planned for this week.

The RMT union had said its members would take go-slow' action over a 48-hour period tomorrow and Wednesday, to highlight concerns about safety levels on the Tube network.

The concerns were prompted by two derailments in October, but London Underground has assured RMT officials they are working hard to resolve safety issues.

However, an RMT spokesman told Local London this afternoon that the proposed 'go-slow' had been called off.

The spokesman said the decision to suspend the industrial action followed agreement with London Underground and private maintenance companies to increase the frequency of track inspections.

RMT General Secretary Bob Crow said LU and the infrastructure companies had agreed immediate action was required to improve track safety standards.

"The employers have agreed that night-time track inspections on open sections of track are to be double-manned immediately and that an emergency review of track patrolling, fault reporting and fixing will also start as a matter of urgency."

However, Mr Crow emphasised that the RMT was still in dispute with Tube employers over safety, and that industrial action could still be taken.

Roger Evans, the Conservative spokesperson for Transport on the London Assembly, said the union should have done more than suspend industrial action.

"Sense appears to have taken hold momentarily at the RMT but why not cancel the strikes rather than suspend them?"