The BBC has announced that filming has begun on the fourth series of Torchwood.
The ten-part run - subtitled Miracle Day - commenced shooting yesterday morning, according to the show's official Twitter feed.
The account's first post read: "Day 1. First shot 8:01am. Coffee pots are bottomless today."
A second post from the production office later confirmed that executive producers Russell T. Davies and Julie Gardner have begun work on the second and third episodes.
It stated: "Russell and Julie are here today to oversee filming and attend concept meetings for EP 2 & 3. (sic)"
Torchwood: Miracle Day stars John Barrowman, Eve Myles, Mekhi Phifer and Bill Pullman and will air on BBC One in the UK and Starz in the US.