Authorities in Madison County are searching for a young couple reported missing earlier this week that were last seen in Indianapolis.

Heaven Henderson, 21, and her boyfriend, Jeremy Danowski, 23, were last seen on Dec. 17 by Danowski's mother, according to a news release from the Madison County Sheriff's Department.

Later that day Lapel police found the couple's car parked and locked.

The next day Danowski's father contacted Lapel police, saying his son's phone had last been used near Lapel. Police later searched the car, finding nothing that suggested any foul play, according to the release.

Investigators said Danowski bought a handgun from a gun shop in Indianapolis on Dec. 14.

"Lapel PD and MCSD are exhausting all avenues to locate the couple," the sheriff's department said in the release.

Police ask that anyone with information regarding the couple's whereabouts call MCSD at (765) 646-9281 or contact Crime Stoppers at (765) 649-8310. Information shared with Crime Stoppers should be considered anonymous.

Call IndyStar reporter Holly Hays at (317) 444-6156. Follow her on Twitter: @hollyvhays.