US-Iran talks to begin Sunday in Switzerland but Tehran closes the strait over Lebanon fighting

Iran has announced the closure of the strategic Strait of Hormuz, citing alleged breaches of a ceasefire agreement by the United States and Israel. The Iranian central military command declared the closure as a direct response to continued Israeli military operations in southern Lebanon, despite a recently established truce. This move signals a significant escalation and is described by Iran as a "first step" in its reaction to what it considers unmet commitments.

The closure comes amidst ongoing efforts for a broader peace deal between the US and Iran. A memorandum of understanding was signed earlier this week to end hostilities and facilitate the reopening of the Strait, with follow-up talks scheduled in Switzerland for a more detailed agreement. However, these crucial negotiations were abruptly postponed on Friday due to the renewed violence in Lebanon, even as US Vice President JD Vance's trip for the talks was canceled.

On Saturday, Israeli forces continued strikes in southern Lebanon, reportedly killing at least 16 people, despite a renewed ceasefire announced just a day prior. Hezbollah, an Iran-backed group, responded with projectile launches against Israeli forces, further intensifying the cycle of violence. This ongoing conflict in Lebanon directly threatens the fragile interim peace agreement, which explicitly called for a cessation of hostilities across all fronts.