UPDATE, 1:30 p.m.: The Boston Globe has updated their story this afternoon, stating Lynch has not yet made up his mind regarding a Senate run, which runs contrary to their previous report. 

EARLIER STORY: U.S. Congressman Stephen Lynch, D-MA, plans to announce he will run for the seat John Kerry is expected to vacate if he confirmed as Secretary of State, according to the Boston Globe. 

A source told the Globe that Lynch will challenge Congressman Ed Markey, D-Malden for the Democratic primary nomination.

Markey recently announced he was running for the seat. Lynch plans to formally announce his plans after Kerry’s expected confirmation.

Kerry received a warm welcome during his Thursday, Jan. 24 confirmation hearing with he Senate Foreign Relations Committee and will likely be confirmed, according to the Washington Post.

Lynch represents 21 communities, including Boston, Braintree, Hingham, Canton, Stoughton, Norwood and Milton. Markey, who has served in the Congress since 1976, represents Medford, among other communities.