A man and woman who were shot by an immigration agent in Portland, Oregon, on Thursday had ties to the Venezuelan gang Tren de Aragua, officials said.

In a news conference on Friday, Portland Police Chief Bob Day confirmed that both "do have some involvement" with the gang, but did not elaborate on the extent of their alleged connection.

Federal officials have said the agent was forced to open fire on the pair after the driver attempted to run him over during a traffic stop. The Department of Homeland Security (DHS) has said the two are gang members who "weaponised their vehicle against Border Patrol".

Both are conscious in hospital and "on the road to recovery", Day said.

On Friday DHS identified the wounded driver as Luis David Nino-Moncada, who it said illegally entered the US in 2022 and has since been arrested for allegedly driving under the influence (DUI) and unauthorised use of a vehicle.