civil divorce and islamic talaq

AOA, My islamic divorce happened in pakistan in 2003, i came to UK through proper visa channel so same islamic marriage is also accepted in UK, i am separated from my husband from 7 years since 2013 and now i am taking civil divorce in uk, after my civil divorce, do i need to take khula as well?? or is it considered as islamic Talaq?? Many thanks, sabiha dawood