US Senator Mitch McConnell was admitted to the hospital Sunday morning, a spokesman said in a statement.

McConnell's spokesman, David Popp, did not elaborate on why the Republican lawmaker from Kentucky was hospitalized or provide an update on his condition. He said in a statement that McConnell "is receiving excellent care."

Two of McConnell's neighbors told Reuters they saw the senator on a stretcher being loaded into an ambulance around 9 a.m. ET outside his Washington, D.C. home.

McConnell, 84, is a former Senate majority leader who helped steer Republicans' legislation and appointees through Congress. He announced last year that he would retire when his current term ends in early 2027.

He has struggled publicly with health issues in recent years, including freezing up while speaking to reporters in 2023. He was hospitalized for eight days in February after experiencing flu-like symptoms.

This is a developing story.