About 1,000 people joined a protest bed-push to campaign against the possible closure of a hospital. Campaigners supporting Hemel Hempstead Hospital in Hertfordshire marched to Watford on Sunday.
They fear plans for a Hatfield super hospital and expansion at Watford General could close Hemel hospital or the Queen Elizabeth II in Welwyn.
The health trust insists that no decision has been made on the future of its hospitals.
MP for Hemel Hempstead Mike Penning, said the march was not directed at the trust running the hospitals but at central government.
"I will once again, be making the health secretary, Patricia Hewitt, fully aware of the strength of feeling in the town."