Plans for a major EU-US trade deal have been denounced by trade unions on the last day of their annual conference.
Some trade unions and NGOs say that the agreement will threaten the future of the NHS and other public services.
The government insists it could boost the economy and open up the US market to British firms.
In recent months, unions have stepped up their opposition to the plan.
Many have focused on the potential impact on the NHS, where private firms are able to provide services.
They claim that TTIP would allow those firms to sue the government if it chose to return those services to public ownership.
Speaking at the conference, Gail Cartmail, assistant general secretary of the Unite union, called for the NHS to be protected from TTIP.
Read morfe: BBC News - Unions oppose US trade deal with EU
