A South Carolina coroner says a pilot and co-pilot killed in a Learjet crash died from smoke inhalation and burns, and two passengers were killed by impact-related injuries.

COLUMBIA, S.C. — Former Blink-182 drummer Travis Barker and a popular disc jockey were critically injured in a Learjet crash in South Carolina that killed four people, authorities said Saturday.

Federal Aviation Administration spokeswoman Kathleen Bergen said the plane carrying six people was departing shortly before midnight Friday when air traffic controllers reporting seeing sparks. The plane went off a runway and crashed on a nearby road, she said.

Hospital spokeswoman Beth Frits said Barker and DJ AM, whose real name is Adam Goldstein, were in critical condition at a burn center in Augusta, Ga., about 75 miles southwest of Columbia.

Barker and Goldstein, who perform together under the name TRVSDJ-AM, played a free concert in Columbia's college neighborhood Friday night.

"It's absolutely terrible and tragic," Columbia Mayor Bob Coble said.

A South Carolina coroner says the pilot and co-pilot killed in a Learjet crash died from smoke inhalation and burns, and two passengers were killed by impact-related injuries.

Lexington County Coroner Harry Harman released the information Monday, about two days after the plane crashed while trying to take off at a Columbia, S.C., airport.

Former Blink-182 drummer Travis Barker and celebrity disc jockey DJ AM were critically injured in the Friday night crash but are expected to recover.

Pilot Sarah Lemmon and co-pilot James Bland were killed along with were Chris Baker and Charles Still, who worked for the musicians.

Federal officials said Sunday that the crew thought a tire blew and tried to abort the takeoff but couldn't stop the plane.

After Blink 182, Barker went on to form the rock band (+44) — pronounced "plus forty-four." He starred in the MTV reality series "Meet the Barkers" with former Miss USA Shanna Moakler, to whom he was married at the time. The show documented the former couple's lavish wedding and life.

Goldstein at one time was engaged to celebrity Nicole Richie.