Human rights lawyers have filed a court appeal in Berlin seeking to block a 150-metric-ton shipment of military-grade explosives aboard German cargo ship MV Kathrin which they say is to be delivered to Israel's biggest defense contractor. The European Legal Support Center (ELSC) said on Wednesday the action was filed on behalf of three Palestinians from Gaza, arguing that the shipment of primarily RDX explosives could be used in munitions for Israel's war in Gaza, potentially contributing to alleged war crimes and crimes against humanity. Israel denies accusations that it has committed war crimes in the Gaza Strip. Germany-based Lubeca Marine, which owns the MV Kathrin, said the ship "was never scheduled to make any port calls in Israel" and had recently discharged its cargo in Bar, Montenegro. The ELSC said the RDX shipment was destined for Israeli Military Industries, a division of Elbit Systems, Israel's largest defense contractor. Elbit Systems declined to comment.