The fired workers were found to have misused the delivery credit – which workers can use on services like GrubHub or UberEats if they stay at the office late or are based in offices that lack a kitchen – over a long period of time, the Financial Times reported, citing a person familiar with the matter.

The firings were part of a broader restructuring at Mark Zuckerberg’s social media giant that sparked job cuts across multiple business segments on Tuesday, including its Instagram, WhatsApp and Reality Labs teams.