I’ve read on socials that the pilot came out and said he thought he was running out of runway so took it onto the grass.
An LTE airbus did the same back in 2005. The crew mentioned not seeing the end of the runway due the dip.
https://aviation-safety.net/database...?id=20050518-1
You can’t see the end of 14 as you approach Delta, it goes up hill then dips away again.
A Ryanair planted his nose gear in roughly the same spot a year or so ago, he though was attempting the turn to Delta at high speed and balls’d it up.
Tui don’t have a base at Leeds so it certainly was an out of base crew.
2 heavy lifting cranes are on site to try shift it.