The Israeli military says Iran has launched missiles towards the country.
It added that sirens have sounded all across Israel and urged citizens to move to marked safe spaces.
The attack comes a short while after the US announced that it had received intelligence that Iran was planning an attack against Israel.
IRNA, Iran’s state-run news agency, confirmed that Tehran’s military has started launching ballistic missiles towards Israel.
Footage shared by media houses showed dozens of missiles flying across the sky towards Tel Aviv.
The missiles came as Israeli police said they received a report about a shooting attack in the Jaffa neighborhood of the city.
Police said the initial suspicion of motive is terror.
Multiple casualties were reported due to the attacks.
Iran said it targeted Israel in response to the killing of Hassan Nasrallah, Hezbollah leader, and other leaders.
“In response to the martyrdom of Martyr Haniyeh, Seyed Hassan Nasrallah and Martyr Nilfroshan, we targeted the heart of the occupied territories,” a statement from the Islamic Revolutionary Guard Corps (IRGC) said.
“If the Zionist regime reacts to Iran’s operations, it will face crushing attacks.”
The Israel Defense Forces (IDF) urged Israelis to “remain alert and precisely follow the home front command’s instructions”.
“Upon hearing a siren, you must enter a protected space and remain there until further notice”, it added.
Meanwhile US President Joe Biden convened a meeting with Vice President Kamala Harris and top national security officials to discuss the Iran ballistic missile attack on Israel.
The US and Israel had warned that any attacks from Iran would have grave repercussions