S.Korea extends Japan fisheries ban as Fukushima concerns grow

* Korea says ban due to concerns over contaminated water leaks * Seoul says Japan’s Fukushima data unreliable * Japan says fishery exports safe, no radiation risk (Recasts, adds Tepco comment, changes slug) By Meeyoung Cho and Mari Saito SEOUL/TOKYO, Sept 6 (Reuters) – South Korea on Friday extended a ban on Japanese fishery imports to a larger area around the crippled Fukushima nuclear plant due to growing concerns over radiation contamination. …