The Israel Defense Forces (IDF) said missiles have been launched from Iran toward Israel, triggering sirens across the country's north.
This comes hours after the ceasefire between Israel and Iran, brokered by US President Donald Trump, came into force.
Iran launched a battery of missiles toward Israel in the early hours of Tuesday.
The strikes came after US President Donald Trump first made the announcement that a ceasefire was to be implemented.
Israel reported four deaths from the strikes in the southern city of Beersheba.
Israel confirms Trump-brokered ceasefire with Iran
The Israeli Prime Minister's office has released a statement confirming the suspension of fighting with Iran.
"After the operation's goals have been reached, and in full coordination with US President Trump, Israel has agreed to the President's offer for a bilateral ceasefire," the statement read.
According to the statement, the two "existential" threats — Iran's nuclear program and its ballistic missiles — were "removed," with Israel adding that the country would respond "fiercely" to every violation of the ceasefire.
Trump says ceasefire 'now in effect'
US President Donald Trump said on Tuesday that a ceasefire between Israel and Iran has begun.
"THE CEASEFIRE IS NOW IN EFFECT. PLEASE DO NOT VIOLATE IT!" Trump wrote on Truth Social.
There is yet to be an official statement from both Israel and Iran on the status of the ceasefire.
Israel reports three dead in missile barrage from Iran
The Israeli military said on Tuesday that Iran had launched another volley of missiles towards Israel, prompting the public to take shelter.
The missile launches came after 4 a.m. (0030 GMT) in Tehran, the time Iran's Foreign Minister Abbas Araghchi said Iran would stop its attacks if Israel ended their aerial bombardment.
Iran's official SNN news agency said that Tehran fired a last round of missiles towards Israel before a ceasefire comes into effect.
Reports cited witnesses saying that they heard explosions near Tel Aviv and Beersheba.
According to Israel media, a building was struck and three people died in the missile attack on Beersheba in southern Israel.
The Israeli emergency service confirmed three deaths in southern Israel, making them the first casualties reported since Trump's ceasefire announcement.
