Authorities have located a 3-year-old boy and 2-year-old girl who were believed to be in danger Wednesday night after they were taken by their father, who is a person of interest in a fatal shooting in south suburban Markahm, according to authorities.

An Amber Alert for both children was canceled Thursday afternoon after they were located, according to an update from Illinois State Police.

Additional details were not provided and Markham police have not responded to requests for more information Thursday.

Lynn Washington | Markham police

Illinois State Police issued the Amber Alert Wednesday night at the request of the Markham Police Department as authorities searched for Lynn Roby, 3, and Jordyn Washington, 2.

They were believed to have been taken by their father, 46-year-old Lynn Washington, who is wanted for questioning about the shooting death of their mother, according to Markham Police Chief Mack Sanders.

The shooting happened at 1:34 a.m. Wednesday at a BP gas station at 167th and Pulaski, Sanders said. Lakisha Roby, 27, was taken to Christ Medical Center in Oak Lawn, where she was pronounced dead, according to the Cook County Medical Examiner’s Office.

The children’s father had picked them up from a family friend after the shooting, Sanders said. He was prohibited from having contact with the girls due to an order of protection issued November 30.

Washington, considered a person of interest in the shooting, was described as a 5-foot-9, 180-pound black man with tattoos on his neck, left arm, right arm and chest.

Washington was last seen in a 2004 or 2005 Malibu Impala or Malibu and should be considered armed and dangerous, state police said.

Anyone with information about their whereabouts was asked to call 911 or (708) 331-2171.

Two people were shot at a gas station in Markham on March 14. | Justin Jackson/Chicago Sun-Times