General Secretary Mick Cash said.
"These latest moves are inevitable in the current emergency situation and the union will continue to liaise closely with LU over any possible impact on staff.
"There is still enormous personal pressure on the tube workforce who are exposed to levels of social contact that the Government say are unacceptable for the wider public. The only people using our transport services should be essential workers who have to travel. Everyone else should stay away to protect themelves, the staff and the wider community.
"RMT will continue to do everything in our power to protect the health, safety and livelihoods of our members throughout this crisis."