WASHINGTON — Amtrak trains on are the Northeast Corridor are running on a modified schedule Thursday and Friday because of the cold weather.

“While the number of frequencies has changed between New York City and Boston or Washington., D.C., a combination of Acela Express and Northeast Regional service is still planned to operate,” Amtrak says in a news release.

Amtrak will run a full scheduled for the following routes:

• Downeaster Service between Brunswick, Maine, and Boston (North Station);
• Shuttle Service between Springfield, Massachusetts, and New Haven, Connecticut;
• Empire Service between New York City and Buffalo/Niagara Falls;
• Keystone Service between Harrisburg, Pennsylvania, and Philadelphia/New York City;
• Amtrak corridor services in Virginia to and from Richmond/Norfolk/Newport News and Lynchburg.