A blast at a ⁠storage facility for petroleum products at the Netherlands’ Rotterdam port killed one person and wounded six others on Thursday, officials said, as police investigated the cause of the explosion.A spokesperson for major energy commodities trading company Gunvor said an “incident” occurred during maintenance work on a storage tank. A police spokesperson said that there was no immediate ⁠sign of sabotage and that all possible scenarios were under ‌investigation.Rotterdam is Europe’s largest port and comprises oil refineries, liquefied natural gas terminals and multiple petrochemical ‌facilities. It hosts Europe’s largest oil refinery, Shell’s 404,000-barrel/day Pernis ⁠plant, in addition to other oil refineries operated by BP, ExxonMobil, and Vitol.The explosion occurred at around 11.30am.A view of a charred wall of a building at Rotterdam port after an explosion on Thursday. Photo: via ReutersGunvor said it was cooperating with local authorities.