The United States Internal Revenue Service will lay off about 7,000 workers, with some 400 here in Philadelphia already given termination notices.

The IRS will lay off roughly 7,000 workers in Washington and around the country beginning Thursday, a person familiar with the plans told the Associated Press. The layoffs affect probationary employees with roughly one year or less of service at the agency and largely include workers in compliance departments,

On a day when dangerously cold weather forced the Internal Revenue Service to close its downtown processing center, hundreds of probationary employees are on notice that their jobs are likely going away.