Cops have released a Bronx mom and her boyfriend after questioning them about the suspicious death of her two young kids, who died a short time apart on Monday.

Police said Tuesday that Jade Spencer, 32, and Novell Jordan, 31, had both been questioned at the 50th Precinct and released, although it wasn’t clear when either left.

Police have opened a homicide investigation after Spencer’s kids Olivia Gee, 2, and Micha, 3, were found gasping for air in their Kingsbridge Heights home around 1:20 a.m., and were rushed to Montefiore Medical Center, where they later died.

An autopsy on Monday showed that Olivia died of blunt-force trauma, and an autopsy will be performed on Micha Tuesday, according to multiple sources.

After her interview, Spencer was placed into psychiatric care at Montefiore, where she was still being evaluated Tuesday morning, police said.