Two men were injured early yesterday when two tractor-trailers were involved in an accident in Campbell Industrial Park.

Both trucks flipped in the accident, officials said.

The accident happened shortly before 4 a.m. Police closed Malakole Street between Kalaeloa Boulevard and Hanua Street.

One of the drivers, a man believed to be in his 40s, was in serious condition, officials said. The second driver, a man believed to be in his 30s, was in stable condition.