London Underground workers are to stage a fresh strike in a long-running dispute over jobs and pensions.
Members of the Rail, Maritime and Transport union (RMT) will stay off work on 19 August.
RMT members are also striking at Network Rail and 14 train operators on 18 and 20 August alongside members of the Transport Salaried Staffs’ Association (TSSA) at a number of rail companies.
The RMT said the new tube strike was prompted by Transport for London’s “refusal” to share details of a draft government proposal it received regarding funding of the transport system in the capital.
The union said it was giving TfL until 2 August to provide assurances on jobs, pensions and working conditions.
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The RMT general secretary, Mick Lynch, said: “Our members will once again take to picket lines in this important dispute over pensions, jobs and conditions.
“They have been messed around by TfL and [London] mayor Sadiq Khan. And to add insult to injury, they have not seen the detail of this funding letter from government.
“Unless there can be assurances made about jobs, pensions and detrimental changes to working conditions, then our strike on 19 August will go ahead.”