Transport chiefs have launched a fresh attempt to avoid RMT industrial action on the London Underground next week.
The RMT union is planning two 24-hour walkouts by Underground drivers on Tuesday June 2 and Thursday June 4.
Transport chiefs have launched a fresh attempt to avoid RMT industrial action on the London Underground next week.
The RMT union is planning two 24-hour walkouts by Underground drivers on Tuesday June 2 and Thursday June 4.