An Ellicott City family was bound with duct tape in their home last week by thieves who stole cash and other valuables, police said.

A woman and her three children were at home in the 8500 block of Ellicott View Road about 11:30 p.m. Saturday when two masked men armed with handguns entered through an unlocked door, said Cpl. Lisa Myers, a department spokeswoman.

The thieves bound the victims' hands with duct tape and then went through the home, taking an undisclosed amount of cash, jewelry and other valuables, Myers said. They fled in a gray sedan, she added.

Police are investigating the crime, but they believe it is an isolated incident, Myers said.