A Florida mother “violently” killed her two children before taking her own life inside their ritzy gated-community home.

Monika Rubacha carried out the double murder-suicide inside her family’s $1.7 million Lakewood Ranch residence, according to the Manatee County Sheriff’s Office.

Cops arrived at the house around 8:30 p.m. Thursday after her husband, Richard James, who was on a business trip in South America, asked them to check on the family, authorities said.

Richard grew concerned when he could not get in contact with his family for at least a day and a half, according to sheriff’s office spokesperson Randy Warren.

“Right away, you could tell something wasn’t right,” Warren told The Post. “There were signs of homicidal violence.”