CSX railroad company is predicting that freight train operations will be restored in the District within 24 hours. The company released an update this morning after crews worked overnight on the site of a freight train derailment that happened near Rhode Island Avenue Metro station on Sunday.

They have “successfully completed excavation of the soils that were impacted by an approximately 750-gallon leak of sodium hydroxide from a tank car that was damaged in the derailment,” according to a release. The site is now being filled with clean material as crews prepare to rebuild damaged tracks.

Crews were also able to move five of the 16 derailed train cars off the site yesterday. The other 11 cars will be taken away after the tracks are restored.

The air quality around the site is still clear, CSX adds.

The incident happened near 9th and Rhode Island Avenue NE around 9:30 a.m. on Sunday. The Metropolitan Police Department restricted pedestrian and vehicular traffic from 4th Street to Brentwood Road NE along Rhode Island Avenue for hours. Metro’s Red Line was also suspended between the NoMa-Gallaudet and Brookland stations.

The Metropolitan Branch Trail, which was closed to cyclists and pedestrians from T to Franklin Streets NE, is now open, according to Mike Goodno of the D.C. Department of Transportation.