Kabul "Green Zone" tightened after attacks in Afghan capital

Afghan security forces keep watch at the site of a suicide attack followed by a clash between Afghan forces and insurgents after an attack on Iraq embassy in Kabul, Afghanistan, July 31, 2017. REUTERS/ Omar Sobhani

KABUL (Reuters) - Afghan authorities are tightening security in the central area of Kabul housing foreign embassies and government offices after a string of suicide attacks that have caused hundreds of casualties and hit confidence in the Western-backed government.

Two months after a truck bomb killed at least 150 people on May 31 in the biggest such attack since the U.S.-led campaign to oust the Taliban in 2001, a series of scanners and cameras have appeared at intersections around the heart of the capital.