At least six tornado sightings were reported in eastern Colorado on Sunday afternoon during a wave of severe thunderstorms, at least one of which forecasters called “extremely dangerous,” according to the National Weather Service.

As of 5 p.m. Sunday, a tornado touchdown had been reported near Arapahoe Park, about 25 miles southeast of Denver, and three were reported in different parts of Bennett, about 32 miles east of Denver, according to NWS reports. Another tornado was spotted by an off-duty NWS employee about 7 miles north of Kanorado on the Kansas-Colorado border.

The three Bennett sightings appear to be the same tornado touching down three times, according to Arapahoe County sheriff’s officials. It first touched down at about 1:50 p.m. Sunday.

The tornado destroyed or damaged at least 17 buildings, including six homes, but no injuries were reported Sunday afternoon, according to the Arapahoe County and Adams County Sheriff’s Offices.

Anyone needing information or assistance can reach sheriff’s officials at 455 South First St., inside the Bennett Recreation Center. Large animals can be sheltered at the Adams County Fairgrounds, and small animals can be taken to the Town of Bennett Safety Building at 365 Palmer Ave.

NWS meteorologists confirmed a separate, “extremely dangerous” tornado was spotted nine miles north of Strasburg, or 32 miles east of Denver, moving northeast at 20 mph just before 2 p.m. Sunday. The tornado warning, which included most of central Adams County, was lifted at 2:15 p.m.

Hail ranging from the size of dimes to ping pong balls was also reported east of the metro area, according to NWS.

The largest hail reported as of 5 p.m. Sunday was 2 inches in diameter, between the size of a golf ball and a tennis ball. The next largest recorded hail was about the size of a ping pong ball, roughly 1 1/4 inches in diameter, and was spotted near the intersection of East Smoky Hill Road and South Powhaton Road in Aurora.

Penny-sized hail, about 3/4 of an inch in diameter, was recorded near Johnstown, Mead, Buckley Space Force Base and Arapahoe Park, according to NWS meteorologists.

Thunderstorms first developed Sunday afternoon along and north of Interstate 70 and are expected to grow stronger this evening, NWS forecasters said in a Hazardous Weather Outlook.

Denver will see rain showers and thunderstorms largely before 9 p.m. Sunday, but the metro area is out of range for the worst severe weather threats, forecasters said.

“Large hail and isolated tornadoes will be the primary threats, with the greatest risk of severe weather focused over the northeast plains,” NWS forecasters said.

The worst of Sunday’s storms will hit the Eastern Plains between 4 p.m. Sunday and 3 a.m. Monday, forecasters said. In addition to rain and hail, strong wind gusts up to 50 mph will also be possible.

Showers and thunderstorms will continue Monday across Colorado.