Austin fire investigators are searching for a person who threw a firework from a moving car that set a homeless couple’s tent on fire on Wednesday afternoon.

The incident happened around 2:45 p.m. at Airport Boulevard and Interstate 35, fire officials said.

Investigators believe someone threw the lit firework from a car on the off-ramp from Interstate 35 North to Airport boulevard.

The firework landed on pavement, but burned grass in the area and caused the couple's tent to catch fire.

Anyone with information is asked to call the Austin Fire Department’s arson office at 512-974-0240.