On yesterday's 1700 Bristol Temple Meads to Paddington, it stopped just after pulling out of Bath. The train manager announced that branches had been placed on the track deliberately; this was in the vicinity of Sydney Gardens where the track is easily accessible https://maps.app.goo.gl/Mcg4GQfJ6Hwmvq1W6

There was a train in front of us - the (delayed) 1647 Warminster service I think - whose crew apparently got out and removed the obstruction. In the end we were delayed by about 30 mins.

Fortunately no one was injured and no equipment was damaged. Worrying though.

Of course I missed my connection with the 1750 Melksham service at Chippenham; the next one would have been at 1900, but a taxi was provided for myself and another chap heading that way. It didn't arrive until about 1835, but was appreciated.