Last week, around 10,000 Tube drivers and other staff members took strike action over plans by Transport for London (TfL) to cut up to 600 station posts, as well as concerns over pensions and working conditions.
Transport for London (TfL) has met the RMT at the conciliation service ACAS twice in the last two weeks but no progress was made on avoiding the strike action.
An RMT source confirmed that there are no further talks planned at present.
“What I would say to the RMT in the most respectful and courteous way is to talk, talk to TfL about how we can resolve these differences,” the mayor told LondonWorld.
“The only reason there is a pensions review is a condition attached to the government in relation to the funding deal.
“The only reason we need the funding deal is because of the pandemic.
“The RMT are letting the government off the hook by going on strike and instead are punishing Londoners, our businesses and TfL, none of whom are responsible for the pensions review.”
This comes as TfL secured a short term funding deal with the government till the end of June.
This, the fourth funding package offered by the government, will contribute towards TfL’s revenue loss due to reduced passenger numbers during the pandemic.
RMT general secretary Mick Lynch said: “Sadiq Khan should be standing up to Tory ministers who want to needlessly attack jobs, pensions and conditions of key transport workers.
“It is this political failure that has left tube workers with no choice but to strike this week.
“Our members have been left paying the price for a turf war between City Hall and the Government and they are not having it as can be seen right across London today.
“The Mayor knows the plan to attack our members’ pensions and conditions is wrong and would leave our union no choice but to take industrial action.
"However, only last week the Mayor agreed to submit proposals to the government that will result in detrimental changes to pensions.
"The Mayor has to decide if he is on the side of key workers who have kept London moving during the pandemic or Tory ministers hellbent on punishing tube workers.
"This dispute can be solved if the Mayor meets the reasonable demands of his own workforce."