A US Immigration and Customs Enforcement (ICE) officer has been charged with assault for allegedly pointing a gun at a vehicle while on duty, Minneapolis prosecutors said on Thursday.

It is the first case in which a federal agent has been criminally charged for their actions during the Trump administration's 10-week immigration crackdown in Minnesota, dubbed Operation Metro Surge, officials said.

Gregory Donnell Morgan, Jr is accused of pointing a gun at motorists who tried to slow him down while he was driving illegally on the shoulder of a state highway in February, prosecutors said.

There is a nationwide warrant for Morgan's arrest as he faces two second-degree assault charges.

On 5 February, Morgan was driving on the shoulder of a highway, appearing to attempt to bypass slower traffic, when another vehicle moved into the shoulder to slow him down, according to Hennepin County prosecutor Mary Moriarty.