One Palestinian was killed and two others injured Tuesday when a blast hit a fuel truck at a crossing in southern Gaza, medics said, Al Arabiya reported.
Emergency services spokesman Ashraf al-Qudra said a 20-year-old man had been killed in the explosion which took place on the Palestinian side of the Kerem Shalom commercial crossing.
Officials were not immediately able to say whether it was the result of an accident or a deliberate attack.
Meanwhile, Interior ministry spokesman Iyyad Buzum said the explosion took place on the Palestinian side of the crossing, describing the incident as "very strange."
It occurred in an area which is under control of the Israeli defense ministry and which workers can only access with permission.
Gaza routinely buys supplies of diesel, gasoline and cooking gas from Israel that are transported through Kerem Shalom, the only commercial crossing into the strip.