A Delta Air Lines flight to Columbia, South Carolina, was forced to return to Hartsfield-Jackson Atlanta International Airport on Monday morning after a “haze” was observed inside the plane, according to officials.

This marks the second smoke-related issue to impact a Delta flight within a week, just two days after an Australia-bound flight returned to Los Angeles due to smoke on the plane.

A flight to Atlanta had to return to Charlotte after experiencing a mechanical issue just after takeoff Wednesday morning.

Federal officials say a Delta Air Lines flight returned to the Atlanta airport soon after taking off because crew members reported possible smoke in the cockpit.

Delta flight returns to Atlanta after crew reports smoke in cabin, all 94 passengers safely evacuated via emergency slides with no injuries reported.

“Following safety procedures, the flight crew of DL3067 returned to Charlotte after reporting a mechanical issue while en route to Atlanta,” a Delta spokesperson said. The airline apologized to customers for the delays to their travel plans. The flight had 71 customers, two pilots and three flight attendants.

An emergency was declared and slides were deployed after the aircraft landed back at Hartsfield-Jackson Atlanta International Airport.

A Delta flight bound for Atlanta returned to Charlotte shortly after takeoff Wednesday due to a mechanical issue; all passengers and crew were safe.

Delta Air Lines flight 3067 returned to Charlotte Douglas International Airport within minutes of departing for Atlanta.