At least 20 people were injured and several homes were “completely destroyed” after a severe storm hit the city of Van in northeastern Texas on Sunday, an emergency management official reportedly said. Flash flood warnings were issued for Van Zandt County, Henderson County and southern Kaufman County.

The storm, which likely produced a tornado, hit the city of Van around 8:45 p.m. local time on Sunday, the National Weather Service said. Authorities reportedly said that about 30 percent of the city suffered some kind of damage. The storm that hit Van, located about 70 miles east of Dallas, on Sunday evening was reportedly part of a severe weather system that stretched across North Texas on Sunday.

"Damages range from completely destroyed homes, damaged homes, to trees and power lines down," Chuck Allen, the Van Zandt County fire marshal and emergency management coordinator, said early Monday, according to the Associated Press, adding that the injured were transported to hospitals. The extent of injuries received by people was not immediately known.

Parts of Van were evacuated after a gas leak, authorities reportedly said, adding that residents were being rescued from the area. Residents were also being urged to move to higher ground as torrential rainfall was leading to flash floods.