Better Call Saul star Bob Odenkirk has been taken to hospital after collapsing while filming the hit show.

Crew called an ambulance for the 58-year-old actor, who was shooting a scene in Albuquerque in New Mexico, where the series is set.

It is unclear what caused Tuesday's collapse but Odenkirk is understood to have remained in hospital overnight.

Sources confirmed the story to the AP and Reuters news agencies after the celebrity site TMZ.

Representatives from AMC, the channel that broadcasts the show, have not yet commented.

Odenkirk has been filming the sixth and final series of the Breaking Bad spin-off, in which he plays Jimmy McGill, a lawyer with questionable morals who takes on the pseudonym Saul Goodman.

The critically-acclaimed show has earned the actor four Primetime Emmy Award nominations.

He also recently moved to the big screen in action flick Nobody.