British Prime Minister Keir Starmer said he feels "horrified" after a shooting at a rally for former U.S. President Donald Trump in Pennsylvania, according to a report by the British news agency (PA Media) on Sunday.

Trump - through a spokesperson - stated that he is "fine" on his platform "Truth Social," and that a bullet "grazed" his ear before he was pulled to the ground by Secret Service agents.

The suspected gunman was killed, while the Secret Service confirmed that one person was killed among the crowd and two others were "seriously injured."

Starmer said, "I am horrified by the shocking scenes at President Trump's rally, and we send him and his family our best wishes."

He added that "there is no place for political violence in any form in our communities, my heart goes out to all the victims of this attack."

On the other hand, U.S. President Joe Biden said he hopes to speak with Trump, and that "everyone should condemn" the shooting.

Secret Service agents pulled Trump to a safe location after hearing gunfire during the rally. Videos from the scene showed Trump raising his fist as he was escorted off the stage with his ear bloodied.