There has been some strange causes of a red flag so far in F1 2025 Bahrain testing, and on Day 3, another was added to the list. And that was a bus on track down at Turn 10, which caused the session to be briefly halted.

The final morning session of F1 2025 pre-season testing was briefly stopped after a bizarre incident brought out the red flag. All 10 teams are completing their third and final day of testing at the Bahrain International Circuit.

The red flag was waved with less than an hour to go in Friday morning's test session, where the Ferrari of Charles Leclerc had been leading the timesheet. The final morning session of the week was red-flagged when the window pane from the start box shattered, leaving a pile of broken glass below, scattered all over the track.

A power cut at the Bahrain International Circuit stopped track action during day one of the Formula 1 preseason test.

Pre-season testing at the Bahrain International Circuit was red flagged, just moments after Sky Sports F1 reported a power cut at Red Bull. Formula 1 is in Bahrain this week for pre-season testing, with all 10 teams getting in some crucial running as preparations for the 2025 season get underway.

The afternoon session of Formula 1 preseason testing was briefly interrupted Friday when a shuttle bus drove on the track. In a bizarre scene, a red flag was waved to halt testing as a white bus drove slowly on a runoff area of the track at Bahrain International Circuit.