GONAIVES, Haiti -- Hungry, thirsty and increasingly desperate residents attacked one another in a panic to get scarce food and water Thursday as workers struggled to bury hundreds of corpses six days after the city was struck by then-Tropical Storm Jeanne.

More than 1,100 were killed and 1,250 are missing, and the toll was rising. The storm left 300,000 homeless in Haiti's northwest province, which includes the port of Gonaives.

Health workers feared an epidemic of disease in the country's third-largest city from the unburied dead, overflowing raw sewage, a lack of potable water, and infections from injuries. Some people already were falling ill.

Police erected barbed wire around their station Thursday after shots were fired at the building overnight.

Most of the police officers also were left homeless by the floods and had only one vehicle, and that one wasn't working, Officer Louis Francois said. Their helplessness enraged residents, who have started throwing rocks at the few riot police the government sent in to help.

"We were saved from the floods, but now my baby is sick," said Marilucie Fortune, 30, who gave birth to a son in a slum last weekend as Jeanne pounded Haiti with torrential rain for 30 hours. Jeanne has since become a hurricane, churning toward the Bahamas with 105-mph winds on a track that forecasters say could lead to Florida this weekend.

Haiti's civil protection agency said more than 900 people have been treated for injuries, mostly cuts and gashes from debris. Medics from U.N. peacekeeping troops have pitched in.

General Hospital -- knee-deep in mud -- was out of commission, supplies are running out, and washed-out roads kept some aid trucks from arriving.

Hundreds of people pushed through a wooden barrier to crowd into Gonaives' sole working clinic for treatment, where one doctor was on duty.

Workers dug new mass graves for bodies half-buried in the mud, trapped in collapsed homes or floating in floodwaters that still ran knee-deep in places.

"There are so many bodies -- you smell them, but you don't see them," said farmer Louise Roland, who, like many, held a lime to her nose to mask the stench.

Some residents of the seaside slum of Carenage had grown so desperate to get rid of the decaying corpses that they were burying the unidentified victims in their back yards. That could cause yet another health hazard because the bodies easily could be forced up from shallow seaside graves.

By Thursday, 1,105 bodies had been recovered -- the vast majority in Gonaives -- and nearly 1,000 people had been injured, according to Dieufort Deslorges, spokesman for the government's civil protection agency.

Limited distribution by aid workers left most people still hungry and thirsty.

"We can only drink the water people died in," farmer Jean Lebrun complained.

The U.S. government will provide more than $2 million in immediate disaster relief to Haiti's flood victims in the coming days, USAID spokesman Jose Fuentes said.