The Lebanon-based Hezbollah terrorist organization late on Monday said that two drones which crashed in Beirut's southern suburbs on Sunday were carrying 5.5 kilograms (12 pounds) of C4 explosives.
The Iran-backed group said in a statement that experts examined the first drone. The suburbs "were subjected to an attack by rigged drones," with the first one failing to cause a blast and the second exploding, it said.
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After the two "suicide drones" crashed on Sunday, Hezbollah leader Hassan Nasrallah warned Israeli soldiers at the border to "await our response."
"We know that these drones came from Israel, we will give proof," Nasrallah said via video.
"Israel thinks we will not react, but if we do not respond then it will allow them to do it again. … Our country will try to solve the problem diplomatically at the United Nations, but we are the only one that can prevent the next strike."
Nasrallah added: "I am telling Israeli residents on the northern border, do not believe your government that you are safe – you are not."
The Hezbollah statement also said drones' mission wasn't to gather intelligence, as initially claimed, rather detonate on a specific target.
Lebanese President Michel Aoun discussed the "Israeli assault on the southern suburbs of Beirut" with the country's United Nations Special Coordinator for Lebanon Ján Kubiš.
Aoun said his country had a right to defend itself after Israeli drone strikes that were like a "declaration of war."
Qassem Soleimani, the chief of Iran's Quds force, the foreign arm of the Iranian Revolutionary Guard Corps, posted pictures of himself on Twitter with the caption: "These insane operations are absolutely last struggles of the Zionist Regime" in three languages.
In Lebanon, media outlets reported Monday that the Israeli Air Force had also bombed a military post belonging to a Palestinian terrorist group based in Lebanon.
According to the reports, the strike targeted a base in the Bekaa Valley in eastern Lebanon, near the country's border with Syria, which is manned by the Popular Front for the Liberation of Palestine-General Command, a terrorist group affiliated with Hezbollah.
An Israeli military official said the IDF "does not comment on foreign media reports," but a defense official told Israel Hayom Monday that if the IAF had, in fact, carried out the strike, it would have been to prevent retaliation by Hezbollah over Sunday's operation.
US Vice President Mike Pence said he spoke on Monday with Prime Minister Benjamin Netanyahu and reiterated US support for its Middle East ally.
"Had a great conversation with Prime Minister @netanyahu this morning. The United States fully supports Israel's right to defend itself from imminent threats. Under President @realDonaldTrump, America will always stand with Israel!" Pence wrote on Twitter, without specifying the imminent threats.
Meanwhile, reports out of northeastern Syria early Tuesday morning said unidentified aircraft attacked targets belonging to Iranian militias in the area. According to the reports, the attack took place in the town of Abu Kamal. Local residents were quoted by Syrian news outlets as saying that Syrian air defenses fired at the aircraft.
