Donald Trump was seen falling to the ground while a crowd screamed in horror as shots were fired during a rally in Pennsylvania.

The former US President, 78, grabbed his neck after the sound of shots rang, with images showing blood dripping from his right ear and down his cheek.

Rifle-wielding cops went into a panic, with the Secret Service seen jumping on the politician, who was visibly shocked.

After security staff rushed to protect him, the huddle stayed down for around a minute.

Trump later got up and raised his fist in defiance, appearing to clutch a red MAGA hat.

After getting on his feet, Trump was escorted off stage and into a vehicle, which drove him away from the scene.