LOS ANGELES (REUTERS) - Screen actor Bob Odenkirk remained hospitalised in New Mexico on Wednesday (July 28), a day after falling ill during production of his AMC cable network show Better Call Saul, according to his friend and former Breaking Bad co-star, Bryan Cranston.

Odenkirk, 58, collapsed on the New Mexico set of the darkly humorous crime drama, which was shooting its sixth and final 13-episode season, and was taken to a nearby hospital, two sources close to the actor confirmed to Reuters on Tuesday night, on condition of anonymity.

But there has been no word on the circumstances surrounding the incident or the actor's medical condition.

Better Call Saul is a prequel spinoff of the hit AMC crime drama Breaking Bad, which introduced Odenkirk as Saul Goodman, the shrewd, sharp-witted criminal defence lawyer for that show's protagonist, high school teacher-turned-methamphetamine chemist Walter White, played by Cranston.

In an Instagram post on Wednesday, Cranston said he was "anxious all morning" after waking up to news of Odenkirk's collapse.

"He is in the hospital in Albuquerque and receiving the medical attention he needs but his condition is not known to the public as yet," Cranston wrote.

"Please take a moment in your day today to think about him and send positive thoughts and prayers his way."

Another friend and former co-star, David Cross, who appeared with Odenkirk in the 1990s HBO sketch comedy series Mr Show With Bob And David, tweeted, "I will share what I know when I can, but Bob is one of the strongest people I know both physically and spiritually."

Cross added: "He WILL get through this."

Odenkirk's publicists and management team declined to comment on the situation.

AMC and Sony Pictures Television, which produces Better Call Saul, did not immediately respond to requests for a statement.

Better Call Saul traces the transformation of Odenkirk's character from a onetime two-bit scam artist and struggling public defender named Jimmy McGill into the morally conflicted attorney Saul Goodman, who ultimately makes a career representing drug traffickers and underworld figures.

The show has earned Odenkirk four Primetime Emmy Award nominations. His motion picture credits include supporting roles in such films as Nebraska, The Post and Little Women.

More recently he starred in the big-screen action thriller Nobody.