All lanes of U.S. 1 at Sunshine Avenue in Baltimore County remain closed in both directions for a three-car crash that was first reported at around 6:30 a.m., state transportation officials said.
One lane of northbound MD 295 past Interstate 695 is closed for a crash.
Two lanes of northbound Interstate 95 in Cecil County, past Exit 93 for Bainbridge Road, are closed for a crash.
All northbound lanes of MD 4 at MD 258 have reopened after a two-car crash.
Maryland Transit Administration officials say some southbound morning MARC trains may have 15 to 20 minute delays this week as track work is being completed. The delays are likely to affect trains 511, 517, and 523, which are the 5:40 a.m., 6:30 a.m., and 8:10 a.m. departures from Perryville, respectively.