The family of a New York couple is becoming increasingly concerned, after not hearing from their loved ones for nearly two weeks since they went on a vacation getaway to the Dominican Republic.

According to NBC New York, Orlando Moore and his girlfriend, Portia Ravenelle left out of Newark Liberty International Airport on March 23. They were supposed to return home on March 27, but now, almost two weeks later, their families still haven’t heard from them. Their phones are turned off, and their car is still parked at the airport.

“We’ve been calling DR and they said they didn’t make their flight,” Lashay Turner Moore’s sister told the news station. “We also spoke to someone in U.S. Customs and they said my brother did not make his flight back here.”

Turner expressed her worry, especially since her brother, who has a daughter, is not the type to “just run off on a hiatus … he’s gonna let someone know where he is.”

“I’m scared. I don’t know what’s going on,” she added. “I’m saddened, my family is saddened by this and we just want my brother to return safe and alive.”

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Turner reached out to the U.S. Embassy in the Dominican Republic and also filed a police report.

Authorities say that the couple did check out of their hotel in Samana, but after that it is unclear what happened to them. They didn’t make their flight back to Newark, and there is no record of them returning stateside.

Turner said that a car that they rented in the Dominican Republic is missing as well.

The U.S. Department of State said that they are working with local authorities to locate the couple, but declined to give further details.

“When a U.S. citizen is missing, we work closely with local authorities as they carry out their search efforts and share information with families however we can,” a U.S. Department of State official told NBC New York in a statement. “The welfare and safety of U.S. citizens abroad is one of the highest priorities of the Department of State. We stand ready to provide appropriate assistance to U.S. citizens in need and to their families.”