By Fedja Grulovic

SOFIA, Dec 10 (Reuters) - A Bulgarian court has ​rejected Lebanon's request to extradite a ​Russian shipowner linked to the 2020 Beirut port blast, citing ⁠insufficient security guarantees from Lebanese authorities.

Igor Grechushkin, a Cyprus-based Russian businessman whose vessel transported the explosive material that detonated at ​Beirut port in August 2020, killing more than ‍220 people, was detained in ​Bulgaria in September for possible extradition to Lebanon, where he is........

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