The parliament pushed through the law in an emergency session, after opposition members boycotted in protest of the government's irregular efforts to get it passed.
There are worries that election observers from Armenia – which has been relatively hard-hit by the COVID-19 outbreak – could bring the virus into Karabakh.
Armenia went farther than most of Iran’s neighbors, closing its border for two weeks. Azerbaijan, meanwhile, was the only country to have not closed its border with Iran at all.