A family of five, including a toddler boy and twin infant girls, were found dead inside an Arizona home Wednesday.

The police and fire officials had arrived at the house near West Augusta Avenue in Phoenix after receiving a report about a possible gas leak.

Responding crews did not enter the house for several hours due to safety concerns. Once the house was secure, the officials discovered the family of five dead just after 12:30 p.m., the Associated Press reported.

The identities of the five members have not been released. The deaths are being treated as homicides, and the officials believe there is no suspect on the loose.

The deceased individuals were found "with obvious signs of trauma," and the presence of gas was detected inside the residence, Phoenix Police Department spokesperson Sgt. Melissa Soliz told the media, according to NBC News.

"This scene is a complete tragedy behind us," said Soliz. "Not only is this devastating to the first responders that had to respond and witness what's inside, but this neighborhood is very close-knit including the extended loved ones and family members that are related to this home and this residence."

The family's cleaning ladies told media outlet Arizona's Family they knew the deceased couple for over a decade and a half, and had worked for them for six years. The cleaning ladies also said the couple lived with a 3-year-old boy and 6-month-old twin girls in the house.

Arizona's Family reported the incident appears to be a murder-suicide. However, other reports said the officials did not confirm the same.

"We need to look at every possible angle, all the evidence, and that's going to take some time," Soliz told reporters, adding they were still in the early stages of the investigation.

Southwest Gas also released a statement, saying they found no gas leak at the house or the surrounding area, Arizona Family reported.

"Southwest Gas responded to an incident near Augusta Ave in Phoenix earlier this morning. Our hearts are heavy with today's news and we are grateful for the quick response of first responders ... Southwest Gas crews have thoroughly inspected all natural gas infrastructure from the meter on the property to the street and surrounding area for gas leaks," a Southwest Gas spokesperson reportedly said.

"No leaks were found. All Southwest Gas infrastructure serving the community is operating without issue," the statement continued. "We will continue to work with the Phoenix Fire and Police departments who have the lead on this incident to assist in the investigation."

If you have thoughts of suicide, confidential help is available for free at the National Suicide Prevention Lifeline. Call 1-800-273-8255. The line is available 24 hours, every day.

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