Strikes by London Underground workers that were due to take place this week have been suspended.
The Unite union wrote on Twitter that it had "taken the decision along with other Tube TUs to suspend the proposed strikes on 25/26 & 27/28 August".
The RMT and TSSA unions also confirmed that they had suspended their strikes, and said that a new walkout had been set for 8 and 10 September.
#TubeStrike talks have been constructive according to Steve Hedley from @RMTunion http://t.co/QwoZpRkDu5
— London Live (@LondonLive) August 24, 2015
Unite regional officer Hugh Roberts said: "There are still some remaining sticking points, but we feel sufficient progress has been made to suspend industrial action as an act of goodwill.
"We will continue to approach talks with London Underground in a positive manner. We trust that London Underground management seize this opportunity to reach a deal that fully addresses our members' concerns and secures a successful future for night running on the Tube."
Earlier, RMT's assistant general secretary Steve Hedley told London Live that talks with Tube bosses had been "constructive".
Tube workers previously walked out on 8 July and the 6 August after a dispute with bosses over the introduction of a new all-night service. In pictures: Tube strike in London
Mr Hedley told London Live: "We were never against the night Tube, we were against the chaos it would bring to people's work-life balance.
"Talks since we put on the new dates have been much more constructive, and we are hopeful management will see sense and come up with a package that will protect people's work-life balance and we'll be able to avert these strikes."
The drivers' union Aslef had already decided not to strike this week.
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