Cuba will turn over to the United States a Florida couple who allegedly kidnapped their own children from the mother’s parents and fled by boat to Havana, a Cuban official said Tuesday.

Foreign Ministry official Johana Tablada, in a written statement, said Cuba had informed U.S. authorities of the country’s decision to turn over Joshua Michael Hakken, his wife Sharyn, and their two young boys. She did not say when the handover would occur.

Tablada said the Foreign Ministry had informed U.S. diplomats on the island “of the Cuban government’s willingness to turn over … U.S. citizens Joshua Michael Hakken, his wife Sharyn Patricia and their two minor sons.”

She said Cuba tipped the State Department off to the Hakkens’ presence on Sunday and that from that moment “diplomatic contact has been exchanged and a professional and constant communication has been maintained.”

U.S. authorities say Joshua Michael Hakken kidnapped his sons, Cole, 4, and Chase, 2, from his mother-in-law’s house north of Tampa. The boys’ maternal grandparents had been granted permanent custody of the boys last week.

The U.S. and Cuba share no extradition agreement and the island nation is also not a signatory of the Hague Convention on the Civil Aspects of International Child Abduction, an international treaty for governmental cooperation on such cases.

Cuba has harbored U.S. fugitives in the past, though most of those cases date back to the 1960s and 70s, when the island became a refuge for members of the Black Panthers and other militant groups. More recently, dozens of Cuban Medicare fraud fugitives in the U.S. have tried to escape prosecution by returning to the island.

But Cuba has also cooperated with U.S. authorities in returning several criminal fugitives in recent years.

Hakken lost custody of his sons last year after a drug possession arrest in Louisiana and later tried to take the children from a foster home at gunpoint, authorities said. A warrant has been issued for his arrest on two counts of kidnapping; interference with child custody; child neglect; false imprisonment and other charges.

According to the Hillsborough County Sheriff’s Office, Hakken entered his mother-in-law’s Florida house last Wednesday, tied her up and fled with his sons. Federal, state and local authorities searched by air and sea for a boat Hakken had recently bought. The truck Hakken, his wife and the boys had been traveling in was found Thursday, abandoned in Madeira Beach, Florida.

At the Havana marina on Tuesday, the family showed no sign they knew a decision about their fate had been made. The four strolled by an outdoor restaurant as security officials kept reporters at a distance.

The youngest child was seated in a stroller and the elder boy sat down on a curb. A woman who resembled Sharyn Hakken was seen on the boat.

Cuban officials told reporters not to take pictures of the family or the boat, which bore the name Salty and had a paw print on its side.