Drivers on the busy London Underground Jubilee Line are to be balloted for industrial action in an escalating row over working conditions and allegations of bullying, transport union RMT said today.
RMT members on the line working out of Stratford and Greenwich depots will vote in the coming weeks on whether to launch a campaign.
In a letter to London Underground RMT has highlighted what it called "unfair and disproportionate treatment" of drivers at disciplinary hearings, very poor and "disgusting" facilities and removal of benefits.
The union said it will co-ordinate balloting and any subsequent action with sister drivers' union Aslef which is also in dispute on the same issues.
"RMT will not sit back and allow the wilful misuse of procedures on any part of the Tube network as a means of bullying and intimidating our members," RMT general secretary Bob Crow said.
"Our members are also sick of the gradual decline in working conditions and facilities which have been allowed to degenerate into a disgusting state.
"RMT remains available for talks aimed at resolving this dispute."
Jubilee Line general manager John Doyle said: "The unions have informed us that they are in dispute with us over what they perceive as a breakdown in industrial relations.
"We are keen to understand their concerns and so will be meeting with the union later this week to discuss these issues in greater detail."