PORTLAND – A mud slide hit a house and injured five people during heavy rainfall in Lake Oswego early Friday morning.

Area residents said around 1 a.m., the ground broke loose and the mud slide slammed right into a house located at 17661 Woodhurst Place in Lake Oswego.

The mud flowed downhill, across a road and then down again into the house. Family members called 9-1-1 and said they were trapped inside, with mud filling the first floor. But they eventually managed to scramble out a window.

Five people inside that home were hurt, three of them seriously. They were taken to a trauma unit at an area hospital.

Meantime, residents in 20 other homes in the Woodhurst Place neighborhood were evacuated and authorities said mud continues to flow down the street.

Gert Zoutendijk with the Lake Oswego Fire Department also said that “a strong smell of natural gas was present.”

Investigators think the slide came down from above Green Bluff in Lake Oswego and hit the home from behind.

“The mud had so much force, it pushed an SUV that was parked in the garage outside,” Zoutendijk said.

Elsewhere, a mudslide was reported on Highway 101 near Cloverdale and another slide was blocking Highway 26 near Brightwood.