Satellite images reportedly show Iran has established a base outside of Damascus to house missiles capable of hitting Israel, crossing a “red line” for the Israeli government as it struggles to stop Iranian entrenchment in Syria.

Images from the Israeli satellite firm ImageSat International appear to show a pair of newly built missile hangars on the base, which strongly resemble hangars at another Iranian compound that Israel bombed last year.

The new base, located around eight miles north-west of Damascus, is being run by the Quds Force, the expeditionary arm of the Iranian Revolutionary Guard, which has spearheaded Iran’s involvement in Syria, according to Fox News.

If the base is confirmed to hold Iranian missiles, its presence will likely increase the tensions between arch rivals Israel and Iran over Syria, which have been growing sharply in recent months.

Those tensions erupted in early February when Israel shot down an Iranian drone that entered its airspace from Syria and in turn lost one of its F-16 fighter jets to a Syrian regime anti-aircraft missiles. Iran denies owning the drone.