Just How is She Related to the Bond Girl???

Exactly how is Olivia related to the Bond girl Maryam from 1987's The Living Daylights? It says in her trivia listing that Maryam is some sort of cousin, but are they related by blood or marriage? If they are blood realatives, is it a maternal or paternal bond?

I always thought they looked so much alike and shared the same last name so I assumed they were sisters for years.