A Loudoun County family was held by four intruders during a home-invasion-style robbery Tuesday morning, according to the Loudoun County sheriff’s office.

The four intruders – two white men and two black men– entered the single-family home in the 13400 block of Loyalty Road in Taylorstown about 11 a.m. and used a weapon to hold the family against their will, authorities said.

The victims were a family of five: a couple, their adult daughter and their two young grandchildren, according to Liz Mills, spokeswoman for the sheriff’s office.

No one was hurt during the robbery, Mills said, and no information was immediately available about what type of weapon was displayed.

The four intruders took items from the home and then left, sheriff’s office officials said. After the intruders left, the family ran to safety and contacted authorities, according to the sheriff’s office.

Mills said the investigation was ongoing, and declined to provide further details on what items were stolen. She said investigators were trying to determine whether the robbery was random or targeted. The robbers tried to conceal their identity, Mills said.

Loudoun sheriff’s deputies were canvassing the vicinity Tuesday afternoon, and authorities cautioned residents to expect an increased law enforcement presence in the area.

Taylorstown is a rural community southeast of Lovettsville, near the border of Loudoun and Frederick counties.

Anyone with information regarding this case or who saw anything suspicious in the area is asked to immediately call the Loudoun sheriff’s office at 703-777-1021. Callers wishing to remain anonymous are asked to call Loudoun Crime Solvers at 703-777-1919. If the information provided leads to an arrest and indictment, the caller could be eligible for a cash reward of up to $1,000, authorities said.