Birmingham police confirmed a two-year-old was found dead in a backyard pool Monday morning.

Police said the family of Marquavias Threatt was hosting a wedding reception at the home, located in the 5600 block of Crestwood Blvd., Sunday night. About 50-70 people were at the party.

Lt. Sean Edwards said police got the call about the missing toddler around 12:30 a.m. Monday, but family members said the child had been missing for about 45 minutes before police were called.

When officers arrived, the child's mother said she had been in the back of the home and had last seen Marquavias by the pool. The child's father had been in the front of the home, and hadn't seen Marquavias leave the property.

Birmingham police officers, the department's K-9 Unit, and officers from the Jefferson County Sheriff's Office searched the pool several times thoroughly, Edwards said. Birmingham Fire and Rescue even searched the murky water using infrared technology, but nothing was found in the pool.

Officers then tried to go into the home to search for the missing child, but Edwards said the family was not cooperative and wouldn't allow police inside. "If you have a two-year-old missing, you're going to be 125 percent cooperative... most normal parents would say, 'Everything is open,'" Edwards said.

Police worked to obtain search warrants for several hours, until an officer walked to the back of the home and spotted the child in the pool.

"It's kind of interesting," Edwards said. "There was a time where we didn't have eyes on the pool after we searched it. Anything could have transpired then." Edwards said it was "mysterious" that the child was found in the pool after police had searched it several times earlier in the morning.

Marquavias' body was taken by the coroner for an autopsy, and Edwards said police are hoping for "clarity on the cause of death."

Edwards did not comment on if anyone was being considered a suspect in the investigation, but he did say approximately six people, including the child's parents, were taken to police headquarters for questioning. "We've got some questions and concerns," he said. "We should not be standing here talking about the death of a two-year-old in a pool when there were plenty of adults around."

Edwards said police are hoping that someone tells them the truth of what happened to the little boy. "There's a lot of question marks that we have."

Dozens of family members remained on the scene this morning, but police said several people who had been at the party left the home before police arrived.

This post was updated July 25 with correct spelling of the victim's name.