A row over the new 'Night Tube' service flared up again today (June 30) as two more unions voted to strike.

Members of the RMT and TSSA unions will now join Aslef's 24-hour walkout from 9.30am on July 8.

Talks are being held today to try and find a solution to the dispute with London Underground (LU) over pay and conditions for the new all-night service.

Unions have rejected a 0.75 per cent pay rise, a £500 bonus and an extra £250 bonus for drivers.

The 24-hour service will be introduced in mid-September on Friday and Saturdays, on the Central, and Victoria lines which serve Waltham Forest, Wanstead and Woodford, and Epping Forest.

A new map for the all-night service was revealed last week.

The RMT said its members voted by 91 per cent in favour of the strike.

RMT General Secretary Mick Cash said: "The industrial relations situation on the Tube has sunk to an almost unprecedented low.

"All unions are united and balloting for action over pay and working arrangements due to be ushered in under the guise of the mayor's 'Night Tube' vanity project in just 10 weeks' time."

Among TSSA members, the vote in support of a strike was 76 per cent.

TSSA General Secretary Manuel Cortes said: "We hope that this result will show Boris Johnson just how angry our members are at his plans to try and rush the start of the 'Night Tube' without any detailed agreement on manning levels."

Steve Griffiths, LU's chief operating officer, said the 'Night Tube' was backed "overwhelmingly" by Londoners and business owners.

He said: "It will make life easier for everyone, cut journey times, create jobs and boost the economy. 

“Most of our staff will not be affected by the new services at all because it affects only five of eleven lines.

"Some staff will actually work fewer nights than they do now because we have hired 137 more train operators specifically for the 'Night Tube'. 

“The train staff who will be affected are being asked to work around an additional seven nights each year on average, with no increase in their total current hours.

"No-one is being asked to work more hours.

“In return, we are offering a realistic pay increase this year and next, as well as an additional payment for 'Night Tube' working.

"We are ready to negotiate, but any increase must be sustainable and fair.

"I urge the unions to keep talking to us to achieve a settlement.”

Epping Forest Guardian:

A map for the night tube service to arrive in September on Friday and Saturdays.