Los Angeles, Sep 21 (IANS): Angelina Jolie's father and actor Jon Voight has expressed his sadness and concern after the actress filed for divorce two years after getting married to Brad Pitt.

Voight thinks "something very serious must have happened" that made Jolie take this step.

Jolie filed for divorce from husband Pitt, citing irreconcilable differences, on Monday.

"It's very sad. Something very serious must have happened for Angelina to make a decision like this," Voight said. 

Voight expressed his views to Inside Edition, reports thewrap.com.

"Anaconda" star Voight added that he didn't know why his daughter took the decision to end her marriage to Pitt, but said that "It's a sad thing. Say a little prayer."

"I am concerned for Angie and the children, and hopefully I'll be seeing them very soon," he said.

Jolie filed for divorce from Pitt after just over two years of marriage and 12 years of being together as a couple. They were officially married in August 2014. 

Jolie listed their official date of separation as September 15. She is asking for physical custody of the couple's six children. 

Pitt officially adopted three of Jolie's children, while Jolie gave birth to three more children of their own over the course of their relationship.

"Brangelina", as they were dubbed by the media, met on the set of the film "Mr. and Mrs. Smith". 

There was widespread speculation at the time that their relationship began onset and that Pitt divorced actress Jennifer Aniston so he could be with Jolie.