The U.N. nuclear watchdog’s chief Rafael Grossi will make his first trip to Tehran

The U.N. nuclear watchdog’s chief Rafael Grossi will make his first trip to Tehran in that role on Monday to pressure Iran to grant inspectors access to two suspected former atomic sites after a months-long standoff, he said on Saturday.

The International Atomic Energy Agency’s 35-nation Board of Governors passed a resolution in June raising pressure on Iran to let inspectors into the sites mentioned in two quarterly IAEA reports because they could still host undeclared nuclear material or traces of it.