Work continues at the site of Thursday's train derailment in eastern Lawrence.
Lawrence city officials said they have been told by Burlington Northern Santa Fe Railway that the track repair work might not be completed until Monday. The city has closed 11th Street east of Haskell Avenue, and it will remain closed until the work is done.
County Road 1550 on the east side of the tracks also is closed.
The derailment involving six cars occurred at 12:30 a.m. Thursday on a side track. BNSF spokesman Steve Forsberg said the cause of the derailment was under investigation and he had no new information Friday. He also said he didn't know why the track repairs were taking so long.