A military plane made an emergency landing at Bradley Airport on Wednesday, the Connecticut Air National Guard said.
Just before 2 p.m., a C-130 plane took off. After about five minutes, a "smoke condition" formed in the plane's cockpit, Major Mike Peterson with the Connecticut Air National Guard said.
The aircraft's crew made an emergency landing on Runway 33 at Bradley, Peterson said.
No injuries were reported.
The plane returned to the Connecticut Air National Guard facility at 2:09 p.m.
The cause of the smoke remains under investigation.