Iran's border guards and the Taliban ended clashes along a segment of the border in what Iranian state media reported was a "misunderstanding" from the Afghan side.
Iran has resumed regular commercial flights to neighboring Afghanistan following a monthlong hiatus.
Saudi Arabia says its coast guard has rescued a distressed Iranian oil tanker off the Red Sea port of Jeddah, raising concerns that the ship's cargo could be leaking.
Sistan-Baluchestan, mainly populated by Sunni Baluch (Baloch), is one of the most deprived provinces of Iran, where recent sand storms and drought have significantly aggravated its problems.
Members of the People’s Peace Movement of Afghanistan ended their three-day sit-in protest outside the Iranian Embassy in Kabul on July 27.