Updated at 2:55 p.m.

Sen. Thad Cochran (R-Miss.) announced Friday he will seek reelection in 2014.

"I will run for reelection to the United States Senate," Cochran said in a statement released by his campaign. "I will run hard and be successful so that I can continue to serve the people of Mississippi and our nation effectively."

Cochran has found himself targeted early in the election cycle by conservative groups, who have lined up en masse behind state Sen. Chris McDaniel in the GOP primary. McDaniel has the backing of the Club for Growth, Senate Conservatives Fund, Tea Party Express and other groups.