Trudeau added that he is receiving regular updates and is monitoring the situation closely.
Germany's Foreign Minister Annalena Baerbock said Iran's attacks had the "potential to plunge the entire region into chaos."
"We strongly condemn the ongoing attack, which has the potential to plunge an entire region into chaos," Baerbock said in a translated X post. "Iran & its proxies must stop this immediately. Our entire solidarity goes out to Israel in these hours."
Israel's ambassador to the U.S., Ambassador Michael Herzog, said that Iran "must be held accountable" for the missile and drone attacks.
"Iran has been the most destabilizing force in the Middle East for decades and is responsible for the violent escalation the region has seen, beginning on October 7th and ever since," Herzog said in a X post. "It should - and must - be held accountable."
"Israel is deeply grateful to the United States for its steadfast support and ironclad commitment to its security at this critical moment," he said. "Israel will do whatever it takes to defend itself."
On Saturday night, President Biden announced that the U.S. military moved aircraft and ballistic missile defense destroyers to the region this past week.
"Thanks to these deployments and the extraordinary skill of our servicemembers, we helped Israel take down nearly all of the incoming drones and missiles," Biden said.
"I’ve just spoken with Prime Minister Netanyahu to reaffirm America’s ironclad commitment to the security of Israel. I told him that Israel demonstrated a remarkable capacity to defend against and defeat even unprecedented attacks – sending a clear message to its foes that they cannot effectively threaten the security of Israel," Biden said.
Biden said that he will convene with leaders from Canada, France, Germany, Italy, Japan and the United Kingdom to discuss a "united diplomatic response."
"Tomorrow, I will convene my fellow G7 leaders to coordinate a united diplomatic response to Iran’s brazen attack," he said. "My team will engage with their counterparts across the region. And we will stay in close touch with Israel’s leaders. And while we have not seen attacks on our forces or facilities today, we will remain vigilant to all threats and will not hesitate to take all necessary action to protect our people."