Russia's overnight strikes on Kyiv province killed two people, Ukrainian authorities said Monday after a countrywide air alert was issued.

One person was killed in the capital, according to Tymur Tkachenko, the head of the city's military administration.

Iran accused Israel on Monday of trying to undermine its national unity after Israeli Prime Minister Benjamin Netanyahu expressed support for protests in the Islamic republic.

"The Zionist regime (Israel) is determined to exploit the slightest opportunity to sow division and undermine our national unity, and we must remain vigilant," foreign ministry spokesman Esmail Baqaei said at a weekly press conference, before accusing Israeli and US leaders of "incitement to violence".

Venezuela's president Nicolas Maduro was in a New York jail on Sunday after a shock U.S. snatch-and-grab raid to remove him from power and assert Washington's control over the oil-rich South American nation.

Israeli Prime Minister Benjamin Netanyahu said Sunday that Israel stood in solidarity with the people of Iran as protests rocked several cities in the Islamic republic this week.

"We stand in solidarity with the struggle of the Iranian people and with their aspirations for freedom, liberty and justice," Netanyahu said at the weekly cabinet meeting.

Syrian Kurdish leader Mazloum Abdi was in Damascus on Sunday for fresh talks with officials on integrating his forces into those of the central military, the Kurds' armed forces said.

At least 80 troops from Yemen's secessionist Southern Transitional Council (STC) have been killed in fighting with Saudi-backed forces and strikes since Friday, a military official from the group told AFP on Sunday.

The United Nations Interim Force in Lebanon said gunfire from an Israeli position hit close to its peacekeepers twice on Friday, reporting no casualties but decrying a "concerning trend".

UNIFIL has repeatedly reported Israeli fire near or towards its personnel in recent months, and last week said an Israeli attack near one of its positions lightly wounded a peacekeeper.

Russia condemned the U.S. military action in Venezuela on Saturday, saying there was no tenable justification for the attack and that "ideological hostility" had prevailed over diplomacy.

Saudi-backed troops on Saturday made advances in Yemen's resource-rich Hadramawt province, military officials said, as confrontations between forces backed by Riyadh and Abu Dhabi have triggered a deep rift between the two Gulf allies.

Supreme leader Ayatollah Ali Khamenei on Saturday acknowledged the economic demands of Iranian protesters, while warning against what he described as rioting.