How is the Comorian language related to Swahili?

Comorian (Shikomoro) is a Bantu language that is closely related to Swahili. Both languages share this common linguistic heritage, reflecting the historical movement of Bantu-speaking peoples from the African mainland to the islands.12

While Comorian is spoken in island-specific varieties, it shares structural and historical roots with Swahili, which also developed as a Bantu language with significant influence from trade across the Indian Ocean. Like Swahili, Comorian is traditionally written in Arabic script.12