Russian Foreign Ministry spokesperson Maria Zakharova called countries near Serbia closing airspace to Lavrov's plane "another closed channel of communication."
"The most important thing now is to strengthen the controls and checks in order to reduce the risk of such accidents," Prime Minister Zoran Zaev said.
Health Minister Venko Filipce expressed his condolences to the families of the victims, calling it a "terrible accident" before resigning on Friday.
NATO could gain a 30th member by as early as October.
The Balkans could be the first test of whether President Donald Trump will side with NATO or Russia.
Macedonia is set to become the Republic of Northern Macedonia in a bid to bring a 27-year dispute with Greece to an end.
Austria and Australia, Niger and Nigeria, Uruguay and Paraguay, listen up.
Half of teenagers say they worry about unwittingly sharing online propaganda.
Italian police uncovered the fraud after the Montenegrin foreign ministry refused to pay for the man's bill at a luxury resort.
The assault on USAID–backed soft-power agencies has been ignored by Trump and Tillerson.
The country is locked in a tense political crisis after an inconclusive election opened old ethnic strife.
The country's two main parties have been in a deadlock since December's elections.
Allegations of criminal behavior by Macedonian politicians have sparked a crisis in a region with a history of conflict.
The anti-corruption activists have protested every day since April.
The Syriza politician failed to use the country's full, official name.
Hundreds of migrants marched out of Greece and hiked for hours to get around a border fence and cross into Macedonia, where they were detained.
The spread of infections has become a concern as thousands of people wait to cross the border.
Interior Minister Johanna Mikl-Leitner said only such a "consistent signal" will deter migrants.
Turkey has warned that even more Syrian refugees may soon arrive seeking asylum.