Police in Idaho urge the public to be vigilant after students were killed in a quadruple murder and no suspects have been identified

Tell you that two roommates were in the house

where the students were killed during the attack

When the officers reached the spot, the door of the house was found open.

Moscow Police Chief James Fry said during a news conference on Wednesday,

"We cannot say that there is no threat to the community

Please be vigilant, report any suspicious activity and be aware of your surroundings at all times."

Police previously said there was no threat to the community.

Four University of Idaho students — Ethan Chapin, Zanna Kernodle, Madison Mogen and Kaylee Goncalves — were found dead at a bloody crime scene Sunday afternoon

Days later new details on the investigation were released, shattering any sense of security for the small college community.

Sits near the Idaho-Washington border.