ROMEOVILLE, Ill. — A homicide investigation is underway after a couple, their two children and three dogs were found dead inside a home in Romeoville.

Police conducted a well-being check around 8:40 p.m. Sunday on the 500 block of Concord Avenue in Romeoville, after a member of the household did not show up to work and was not responding to phone calls.

Upon arrival, officers discovered four deceased individuals, two adults and two children, with gunshot wounds inside a residence.

Police said three dogs were also found fatally shot.

According to authorities, the adult victims have been identified as Alberto Rolon, 38 and Zoraida Bartolomei, 32. Police said the deceased children, ages 7 and 9, belonged to both Rolon and Bartolomei. The childrens’ identities have not yet been released.

Investigators said the shooting happened sometime between 9 p.m. Saturday and 5 a.m. Sunday. Police do not believe the shooter is among the victims.

“This incident is the police department’s top priority. All officers and professional staff have been working tirelessly on this case,” Deputy Chief of Police Chris Burne said. “Our detectives and crime-scene investigators have spent the last 36-hours collecting a tremendous amount of physical evidence. We were able to determine that this was not a random incident and there was no cause for a shelter-in-place order.”

The children were students at R.C. Hill Elementary School where a crisis intervention team will be available for students Tuesday.

“Our entire community is grieving with the family over this tragic incident. It is always heartbreaking whenever there is a loss of life, but when there are children involved it’s much more painful,” Mayor John Noak said. I have directed our social services staff to make themselves available to our community to help begin the healing process. It is important that we conduct a thorough investigation and we have committed our full resources to that task. The victims deserve that.”

No one is in custody as the investigation remains ongoing by Romeoville police and the Will County Major Crimes Task Force.

Anyone with information is urged to contact the Romeoville Police Department at 815-886-7219.

Watch the Romeoville Police Department press conference in the video player above.