The Hezbollah leader says the strike brought Israel into "direct confrontation with Iran."
The bloc's foreign ministers are set to meet to discuss the current Syria situation on Monday.
The French army is preparing itself for a possible riposte as it waits for the political green light.
Trump and his latest early morning tweet.
Hamas spokesperson Hazem Qassem: US serves "Israeli propaganda machine."
May said she is ready to join US and France in strikes following chemical weapons attack in Douma.
Bouthaina Shaaban said "the rules of engagement" now favor Damascus.
The Houthis say their missile attacks on the kingdom are in retaliation for air raids on Yemen by the Western-backed coalition.
Russians awoke on Wednesday to doomsday headlines claiming that Trump was teasing a third world war.
After a suspected chemical weapons attack in Syria last week that killed dozens, Russia and the US are sparring over their responses.
It is not clear what the Trump plan is in Syria.
“The victims of the Assad regime are paying the price for this mistake,” says German politician Volker Beck.
“Russia vows to shoot down any and all missiles fired at Syria,” Trump said. “Get ready Russia, because they will be coming, nice and new and ‘smart!’”
Algeria’s defense ministry issued a statement expressing condolences to families of the victims.
Russia is Syrian President Bashar Assad's most powerful ally.
The Nicosia flight information region named in the Eurocontrol statement on Tuesday covers the island of Cyprus and surrounding waters, according to a map on the agency's website.
The situation in Syria is expected to be the main topic on the agenda when the security cabinet holds its regular Wednesday meeting, overshadowing even the tense situation on the Gaza border.
“No matter what the price, we will not allow Iran to have a permanent [military] foothold in Syria. We have no other choice,” the defense minister said.
Syria, Iran and Russia have accused Israel of being behind a strike on a Syrian air base - something Israel has neither confirmed nor denied.
The Islamic Jihad statement did not deny reports that Shalah had been poisoned.