Man arrested after allegedly throwing phone at President Donald Trump

A man has been arrested after allegedly throwing a cell phone at President Donald Trump as he spoke at a convention on Friday (local time).

Trump was approaching a lectern to speak to the National Rifle Association (NRA) in Indiana when a cell phone came hurtling through the air at him.

While it missed, the incident was taken seriously and the suspected offender, William Rose, who is believed to have been intoxicated, was arrested.

"An individual was removed from the event and the investigation is continuing," a statement from the Secret Service to Fox News said.

It's not the first time a US President has had a close call with a flying object.

In 2008, President George W. Bush ducked twice when an Iraqi journalist threw two shoes at him.