Hezbollah weapons cache explosion?

Palestine Press reports that yesterday morning there was a massive explosion near Tyre, Lebanon.

Officially, the explosion was at an electricity generator, but Hezbollah men surrounded the area of the explosion, a building where they control three floors.

According to witnesses, Hezbollah prevented the Lebanese security forces and the Lebanese army and UNIFIL forces from approaching the scene. A fire broke out that lasted several hours.

According to Lebanese sources, the place where the explosion occurred was a meeting place for Hezbollah militants.

I cannot find the story anywhere else at this time.