Fire erupts at military base in western Iran February 14, 2022Iran's Natanz nuclear site, one day before an explosion knocked out its electrical system, April 11, 2021. (AP/Iranian Presidency Office)(AP/Iranian Presidency Office)Fire erupts at military base in western IranSensitive military and nuclear sites have been the target of attacks in the past years, which Iran has blamed on Israel.By Associated PressA fire erupted at a military base in western Iran, state-linked media reported on Monday, the latest in a series of blazes and other mishaps at Iranian infrastructure in recent months.The fire broke out at a warehouse full of engine oil and flammable materials at a base belonging to Iran’s powerful paramilitary Revolutionary Guard in the western province of Kemranshah, reported the Iranian website Nournews, which is believed to be close to Iran’s Supreme National Security Council.The blaze damaged a shed but did not cause any casualties. Investigators were looking into the cause and details, the report added.The day before, unconfirmed reports proliferated online about several explosions heard in northern Kermanshah, a strategic location in Iran with various missile and military sites.Sensitive military and nuclear sites have been the target of attacks in the past years, which Iran has blamed on Israel.The fire broke out as Iran remains on edge about negotiations over its nuclear program continuing in Vienna this week. The 2015 deal that granted Iran sanctions relief in exchange for curbs on its nuclear program collapsed nearly four years ago when former President Donald Trump withdrew the U.S. from the accord and re-imposed crushing sanctions.Read WATCH: Israeli pilots prepare to take off for Iran operationAfter months of slow progress, diplomats have said the nuclear negotiations are reaching a decisive phase. Iraniran nuclear programIranian threatIRGC