Law enforcement asked for the public’s help Wednesday in the search for a Frederick woman and her two young daughters who have been missing for more than 48 hours.

Frederick police, the Colorado Bureau of Investigation and the FBI have been searching for Shanann Watts and her two daughters, 3-year-old Celeste and 4-year-old Bella, since Monday afternoon. Officials did not release any new information Wednesday afternoon because they didn’t want to jeopardize the ongoing investigation, Frederick police spokesman Sgt. Ian Albert said at a news conference.

“There is no reason to believe the public is at risk,” he said.

At the end of the conference, a reporter asked why the sergeant didn’t believe there was a threat to the public, but Albert did not answer and walked inside the police building. He did not take any other questions, but said there will be another update at 6 p.m. Wednesday.

Frederick police responded at 1:40 p.m. Monday to Watts’ home in the 2800 block of Saratoga Trail after a friend said she hadn’t heard from Watts recently. Investigators have searched the area and handed out flyers with missing persons information.

The CBI said Tuesday that Shanann Watts and her daughters were considered endangered and missing. Watts is 15 weeks pregnant and the young girls may have medical concerns, Frederick police said. They were last seen in the Frederick area, which straddles Interstate 25 southeast of Longmont.

Watts’ husband, Chris Watts, told Denver7 that his wife’s phone, purse and keys were left at home.

“When I came home and then walked in the house, nothing. Vanished. Nothing was here,” he told the television station.

Watts is described as 5 foot, 5 inches tall and 148 pounds with hazel eyes and black hair. Bella is 3 foot, 6 inches tall and 40 pounds with brown eyes and brown hair. Celeste is 3 feet tall and 37 pounds with hazel eyes and blonde hair.

Anybody with information about the disappearance is encouraged to contact Detective Dave Baumhover at 303-652-4222 or dbaumhover@frederickco.gov or the Frederick Police Department at 720-382-5700.