BEIRUT, Lebanon (AP) — Shiite Hezbollah gunmen seized control of key parts of Beirut from Sunnis loyal to the U.S.-backed government Friday, a dramatic show-of-force certain to strengthen the Iranian-allied group’s hand as it fights for dominance in Lebanon’s political deadlock.

An ally of Hezbollah said the group intended to pull back, at least partially, from the areas its gunmen occupied overnight and Friday morning — signaling Hezbollah likely does not intend a full-scale, permanent takeover of Sunni Muslim parts of Beirut, similar to the Hamas takeover of Gaza a year ago.

The clashes eased by Friday evening as Lebanon’s army began peacefully moving into some areas where Hezbollah gunmen had a presence.

But as Hezbollah gunmen celebrated in the capital’s empty streets — including marching down Hamra Street, one of its glitziest shopping lanes — it was clear that the show-of-force would have wide implications for Lebanon and the entire Mideast.