A Downing Street spokesperson said:
This afternoon the Prime Minister had a constructive call with Welsh First Minister Carwyn Jones to discuss the urgent situation with Tata Steel in Port Talbot.
Both the Prime Minister and First Minister agreed it was an extremely worrying time for the workers and wider community in Port Talbot, and South Wales more broadly. They also agreed that the UK and Welsh governments would continue to work together closely to do everything possible to secure the future of steel making at Port Talbot and elsewhere in the UK.
The Prime Minister and First Minister pledged to work to support a sales process that delivers a sustainable long term future for the plant. They also agreed to remain in close contact in the days ahead at both official and ministerial level.