An Israeli strike on Beirut's southern suburbs, known as Dahieh, killed at least three people overnight Tuesday, Lebanese authorities said, after Israel announced its second strike on the country's capital in a fragile four-month truce.

The attack that came without warning at around 3:30 am (0030 GMT) during the Eid al-Fitr Muslim holiday. It came after Israel struck Beirut's southern suburbs, a bastion of Hezbollah support, on Friday after issuing an evacuation warning.

Lebanese authorities said several suspects have been arrested after rockets were fired at Israel earlier this month, testing a fragile November ceasefire.

Lebanon's General Security agency said it had "arrested a number of suspects, and the relevant authorities have begun investigations with them to determine responsibility and take the appropriate legal measures."

Prime Minister Nawaf Salam met Sunday in Mecca with Saudi Crown Prince Mohammad bin Salman after performing the Eid al-Fitr prayer with him at Mecca’s Grand Mosque.

Israeli Prime Minister Benjamin Netanyahu said Sunday that Israel is enforcing a tough and uncompromising policy in Lebanon.

Iran has described the "excuses" put forward to justify Israel's attack Friday on a Beirut southern suburb as "completely unjustified and baseless."

Foreign ministry spokesman Esmaeil Baqaei called for "decisive measures" from the international community to address the "lawlessness" of Israel's continual use of military force from Gaza to Syria and Lebanon.

The United States said Friday that it slapped sanctions on a Lebanon-based “sanctions evasion network” that supports Hezbollah’s “finance team, which oversees commercial projects and oil smuggling networks that generate revenue for Hezbollah.”

Deputy U.S. Special Envoy for Middle East Morgan Ortagus said that Friday’s ceasefire violation came from Lebanon and that Israel had the right to respond.

She was speaking to Al-Arabiya TV after Israel carried out an airstrike in Beirut’s southern suburbs, the first since the end of the war, in response to two rockets that were fired from Lebanon.

Prime Minister Nawaf Salam on Friday called Israel’s strike on two buildings in the Beirut southern suburb of al-Jamous "a dangerous escalation," urging the army chief "to act quickly to... uncover those behind the irresponsible rocket fire that threatens Lebanon's stability" and arrest them.

Israeli Prime Minister Benjamin Netanyahu said the Israeli airstrike that destroyed two buildings in Dahieh earlier in the day, the first since the latest war with Hezbollah, was “another example” of Israel’s “determination.”

President Joseph Aoun said Friday that he condemns the Israeli airstrike on Beirut’s southern suburbs and any attempt to “bring back the circle of violence” to the country.

Speaking during a news conference in Paris, Aoun said the Lebanese Army is investigating who fired two rockets at north Israel in the morning and “we will not allow anyone to use Lebanon as a launching pad."