Most likely tear gas.

Drop Site News spoke to 13 current and former staffers who mapped out the extensive bias in the BBC’s coverage and how their demands for change have been largely met with silence from management. At times, these journalists point out, the coverage has been more credulous about Israeli claims than the UK’s own Conservative leaders and the Israeli media, while devaluing Palestinian life, ignoring atrocities, and creating a false equivalence in an entirely unbalanced conflict.

In November, the journalists’ outrage at the Corporation’s overall coverage spilled out into the open after more than 100 BBC employees signed a letter accusing the organization, along with other broadcasters, of failing to adhere to its own editorial standards. The BBC lacked “consistently fair and accurate evidence-based journalism in its coverage of Gaza” across its platforms, they wrote.

https://www.dropsitenews.com/p/bbc-civil-war-gaza-israel-biased-coverage

The BBC are a captured organisation.

Drop Site News are new to me, I have no idea of their credibility. But Owen Jones (the journalist who wrote this) is a famous journalist who regularly writes for The Guardian.