One person is reported dead according to a Syrian human rights organization based in the UK.
A huge blast hit an Iraqi military base used by Popular Mobilization Forces near Baghdad.
The IDF is still reviewing what caused the explosion, but did not say anything about any active threat or attack posed by Hezbollah.
Last month, there was another mysterious explosion in Russia, in St Petersburg.
Scientists at Israel's Weizmann Institute of Science got lucky and managed to spot a star in a nearby galaxy go supernova, able to make a portrait of the star's last days.
According to witnesses, the blast was so powerful that it also buried additional victims under the rubble, prompting emergency services to conduct rescue operations.
Coal mine accidents, which are common on the Pakistan-Afghanistan border, are results of gas build-ups, lack of safety gear, and poor working conditions.
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According to reports, the blast was so large it was seen from several cities across central Iran.
Several groups, including the Islamist militant Pakistani Taliban (TTP) and separatist groups from Balochistan have carried out attacks in recent months.