Patrick Stewart has announced that he has started filming a new Star Trek series which follows the life of Jean-Luc Picard after his tenure as captain of the Enterprise in Star Trek: The Next Generation.

In a tweet on Monday, 78-year-old Stewart revealed a picture from the series’ writers' room, with the caption that "the journey has begun".

Picard featured in 178 episodes of Next Generation between 1987 and 1994 as well as several movies. It is the first time Stewart will play the captain since appearing in the 2003 movie Star Trek: Nemesis.

News of Stewart’s return of the role was revealed at the Rose City Comic Con last August, when he said, "It is... an unexpected but delightful surprise to find myself excited and invigorated to be returning to Jean-Luc Picard and to explore new dimensions within him. Seeking out new life for him, when I thought that life was over."

According to Stewart, who is also known for his recurring role as Professor Charles Xavier in the X-Men franchise, the new CBS All Access show that will explore "the next chapter of Picard's life".