The Israel Defense Forces said in a statement that Iran has launched further strikes against Israel.

"Defensive systems are operating to intercept the threat," the IDF said.

Israel conducted strikes in western and central Iran, the IDF said in a statement early Monday morning local time.

The IDF said it struck military targets.

Oil prices are higher Sunday as trading begins for the week, hours after Israel said it identified missile strikes from Iran.

U.S, oil is trading at $93.30 a barrel, up 3% and global oil is trading at $95.78, up 2.8%

The average price for a gallon of regular is $4.09, up $1.16 since the war started.

After a sharp selloff on Friday, stock futures are trading lower; Dow futures are down 199 points.

-ABC News' Zunaira Zaki

Israel Defense Forces (IDF) said it identified missiles launched from Iran toward Israel on Sunday and was activating its defensive systems to intercept the threat.

The Iran missile attack on Israel followed strikes carried out by the IDF this weekend on Iran-backed Hezbollah militant targets in southern Beirut, Lebanon.

The alleged missile attack aimed at Israel came just hours after Iranian lawmaker Ebrahim Rezaei promised a "decisive and painful response" to Israel’s airstrikes on southern Beirut on Sunday.

Rezaei, spokesman for the Security and Foreign Policy Committee of Iran’s Parliament, issued a statement on social media, threatening, "This rabid dog must be disciplined and put in its place. Look at the sky of the occupied territories tonight."

IDF sent out a precautionary directive to mobile phones of residents in the area targeted by Iran, asking them to act responsibly and follow instructions to save lives.

Upon receiving an alert, the public is being instructed to enter a protected space and remain there until further notice.

-ABC News' Jordana Miller and Claire Bower

A United Nations Interim Force in Lebanon peacekeeper died on Thursday morning after sustaining injuries in a Wednesday night mortar attack on a position near Marjayoun in southeastern Lebanon, the force reported.

Two other peacekeepers were injured in the attack and are undergoing treatment at a UNIFIL base, the force said in posts to social media.

"UNIFIL has launched an investigation to ascertain the exact circumstances that led to this tragic incident," the force wrote.

"UNIFIL has detected an increasingly high number of trajectories and impacts in South Lebanon. The violence must end," it added.