Sen. John Fetterman's office reported the Pennsylvania Democrat had "sustained a fall" near his home in Braddock, Pennsylvania, during an early Thursday morning walk.

Upon evaluation at hospital in Pittsburgh, "it was established he had a ventricular fibrillation flare-up that led to Senator Fetterman feeling light-headed, falling to the ground and hitting his face with minor injuries," according to a statement.

His office said he is doing well and receiving routine observation at the hospital. He opted to stay so doctors can fine-tune his medication regimen, the statement said.

This is a developing story. Please check back for updates.

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