Donald Trump‘s Secret Service security was increased in the weeks ahead of the assassination attempt due to intelligence of an alleged plot by Iran to take out the former president.

A human source informed U.S. officials of the plot, according to a new report from CNN.

It does not appear at the current time that shooter Thomas Matthew Crooks is connected to the Iranian plot. 

Crooks, 20, shot Trump in the ear at a rally in Butler, Pennsylvania on Saturday before he was taken out by U.S. Secret Service.

The new report of enhanced security around the former president could raise even more questions after Republican outcry ensued on how Secret Service failed to detect the would-be assassin before he opened fire at the rally.  

U.S. authorities were provided intelligence from a source in recent weeks detailing the Iranian plot to assassinate Trump, multiple people briefed on the situation told CNN.

In a statement on Sunday, Secret Service spokesperson Anthony Guglielmi said in a statement that the agency recently ‘added protective resources and capabilities to the former President’s security detail.’

Trump’s campaign has received multiple warnings more recently about their outdoor rallies because it poses higher risks than indoor events that have controlled access points to the venue.

But sources claim these warnings were more general in nature and did not specifically disclose the threat from Iran.