Police in the Czech Republic are investigating a home explosion that killed the Palestinian ambassador to Prague on Wednesday.<br/> <br />The Palestinian Foreign Ministry said Ambassador Jamal al-Jamal had been trying to open a safe that was recently moved to his new home.<br/> <br />A Czech government source told Reuters that the explosion was probably caused by a security device on the safe.<br/> <br />The same source said the government did not believe it was a terrorist attack.<br/> <br />The ambassador died of his injuries in the hospital.<br/> <br />The incident remains under investigation.