Notifications occasionally appearing in different language
I've had my iPhone 5s for a little over a year, and I've noticed in the past month or so I occasionally get notifications in different language, looks like Arabic. It isn't a message notification, today it was Instagram and previously it has been BBC news.
Does anyone have any ideas as to why this is happening? And how to stop it? I've checked my language settings and it's all correct...
iPhone 5s, iOS 10