A jewy will do that too you on light tackle easy. After the first run did it stop and feel like a snag? If so ray, if it just stopped running and had some head shakes possibly a jew. Kings will do it but they don't usually stop until they get you in the reef.
I had a similar experience a few weeks ago getting spooled on 20 lb with about 200m. It's didn't even slow down and even sped up towards the end I call that one for a big ray. Or lost barrel blue fin tuna in north harbour lol.