(CBS) — Boaters leaped into the water to escape a fire that consumed at least 35 vessels docked along the Tennessee River in Alabama early Monday. Authorities said there were fatalities, and 7 people were sent to hospitals.

Jackson County Chief Sheriff’s Deputy Rocky Harnen  confirmed to CBS affiliate WHNT that at least two people were killed and eight people were missing.  

Scottsboro Fire Chief Gene Mecklaus told CBS News that of those missing, some are most likely to be fatalities. Necklaus said the fire destroyed at least 35 boats docked in Jackson County Park. 

The blaze was reported shortly after midnight as people living in the riverboat community were sleeping, and consumed the wooden dock and an aluminum roof that covered many of the vessels, cutting off escape routes and raining debris into the water.

“There were numerous people rescued from the water who had escaped by going into the water,” Harnen told The Associated Press shortly after dawn. “We’re trying to get divers down here to search for possible victims in the water.”

“We have some confirmed fatalities, but we don’t have an exact number yet,” Harnen added. “We have several people who were taken to the hospital from being in the water, and some had minor burns.”

Mandy Durham was on her boyfriend’s boat when the fire broke out on the B dock, about 50 yards from the A dock where their vessel is moored.

“We woke up hearing screams and popping noises,” she said. “When we woke up, we could see red through the window.”

“Within 15 to 20 minutes, the whole dock was in flames.,” she said. “All these boats have propane tanks and gas tanks, and that’s a lot of fire.”

People were jumping onto a boat at the end of the dock because fire had consumed the middle portion and that was their only escape. But then the flames spread to that boat, leaving water as their only escape route, Durham said.

“Water was the only place they had to go,” Durham said. “Its just extremely sad. It’s horrible.”

WHNT reported 17 agencies are on the scene, some with search and rescue boats.  

Harnen said officials are trying to account for about people who had places on the dock.

“They had slips here,” Harnen. “That doesn’t mean they’re in the water and it doesn’t mean they’re dead. We’re making attempts to find them.”

It’s been a challenge for rescuers to reach the victims, Harnen said: “The damage from the dock has fallen on top of the boats, and some of the boats have drifted off,” he said. The aluminum roof and wood structure was destroyed, as were about three dozen boats. Crews also were using booms in an attempt to contain fuel in the water, he said.

Crews were called to the fire at about 12:30 a.m. on Monday. The chief said most of the vessels had people living on board.

The Jackson County Emergency Management Agency says firefighting and rescue operations have been taking place on land and in the water.

The park on the Tennessee River includes a boat ramp, a dock and a restaurant, and offers boat rentals, according to Jackson County’s government website.

First published on January 27, 2020 / 8:05 AM

© 2020 CBS Interactive Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.