(KMOV) -- One person was killed in a wreck involving a semi truck on Interstate 44 in south St. Louis Monday.
The incident happened on the interstate near the Jefferson exit around 11 a.m.
Authorities confirm one person died, but did not say which vehicle they were in.
All lanes of eastbound I-44 were closed from Grand to Jefferson as crews worked to glean up the scene.
The cause of the wreck was unknown.
The accident happened as negative temperatues kept many roads still in bad condition a day after the St. Louis area got about 10 inches of snow.