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

Israeli Defense Minister Israel Katz said on Thursday that Israeli attacks on Hezbollah will continue in southern Lebanon and that displaced Lebanese residents will not be allowed to return, despite Wednesday's agreement to implement a ceasefire in Lebanon.

Katz said that the Israel Defense Forces maintains "freedom of action," including in Beirut, where the threat of resumed Israeli strikes has caused tension between Israeli Prime Minister Benjamin Netanyahu and the White House.

Katz described the agreement brokered between Israeli and Lebanese leaders in Washington this week as "a ceasefire for the removal of Hezbollah terrorists from all areas south of the Litani and the creation of a demilitarized zone, the IDF continuing its fire and activity in the area."

Katz said the IDF would remain in southern Lebanon, "including in the Beaufort area and without the return of the population," referring to the strategic Beaufort Ridge area -- where the Beaufort Castle, a historic Crusader fortification, is located -- just south of the city of Nabetieh.

Katz also indicated that the destruction of property in southern Lebanon would not stop, saying the military will continue the "thwarting of terrorist infrastructures in the area, and freedom of action for Israel with American backing to attack Beirut in response to firing on Israeli settlements and territory."

Katz said the military campaign created the conditions for this week's agreement to be reached, and "that may lead, depending on developments on the ground and our continued uncompromising stand on the interests of the state of Israel, to a political peace agreement with the state of Lebanon and, above all, to achieving real and permanent security for the residents of the north for the first time in 50 years."

-ABC News' Jordana Miller and Othon Leyva