Ryan Reynolds and Scarlett Johansson's split has reportedly been caused by their hectic careers.

The couple, who have been married since 2008, announced this week that they are divorcing.

A source told People that they have ended their marriage on amicable terms.

They said: "There's no third party. Ryan and Scarlett had been having some issues for a few months now. Distance and their careers played a big role. When you don't spend a lot of time with your partner you grow apart."

The insider added that the couple struggled to make their relationship work due to the long absences caused by their careers.

"[They] started to lead different lives, and it was harder and harder to come back together and pick up where they left off. Scarlett was young when they married. She's a mature person but at points they were just on different pages.

"They had an intense and loving relationship, and they'll always love and respect each other."