Twenty Boy Scouts and adult chaperones were rescued early Monday after becoming trapped by rising water along the Potomac River at White’s Ferry, Montgomery County fire officials said.

The rescue was one of a number of high-water rescues around the region in the wake of the weekend’s severe storms.

Around 6:15 a.m., rescue teams used a helicopter and a boat to pluck the scouts from a campground that had become cut off from the C&O Canal by rising water, fire officials said. No one was injured.

The scouts had stopped there for the night during a hiking trip, fire officials said.

Another group of four campers was rescued from waist-deep water at Marble Quarry Campground in Dickerson just before 4 a.m., fire officials said. The group’s campsite on the Potomac began to flood, so they tried to move to dry land, but ended up in deeper water, fire officials said. The group was rescued by boat.

“People thinking about recreation should avoid areas around rivers right now,” said Montgomery Couny Assistant Fire Chief Scott Graham.

The National Weather Service (NWS) has issued a flood warning for the Potomac River. The river was running about five feet above flood stage early Monday, according to the NWS.

In a separate incident, three people, including an infant, were pulled from a partially submerged car in Bowie Sunday night, according to Prince George’s County fire officials. The vehicle stalled on Governors Bridge Road in floodwaters from the Patuxent River.