United Nations peacekeeping forces in Lebanon and facilities were targeted in "three separate incidents in south Lebanon," Tuesday, UNIFIL said in a post on X.

Four Ghanian peacekeepers on duty "sustained injures as a rocket ... hit their base," UNIFIL said in a post on X. Three of the injured peacekeepers were transferred to a hospital in Tyre, Lebanon for treatment, UNIFIL said.

In a different attack, a UNIFIL building was "impacted by five rockets," UNIFIL said.

"In another incident, UNIFIL Sector West Headquarters in Shama was impacted by five rockets, which struck the maintenance workshop," UNIFIL said. "Although it caused heavy damage to the workshop, no peacekeeper was injured. This was the second time this UNIFIL base was impacted by the ongoing clashes in the area in less than a week."

In a third incident, a UNIFIL patrol was "passing through" a village, and "an armed person directly fired at the patrol," UNIFIL said. No injuries were reported from this incident.

UNIFIL is investigating the incidents and has informed the Lebanese armed forces about them, UNIFIL said.

"UNIFIL once again reminds all actors involved in the ongoing hostilities to respect the inviolability of United Nations peacekeepers and premises," UNIFIL said in a post on X.

At least five people were killed, 31 were injured and at least two people remain missing after an Israeli airstrike in the Zuqaq al-Blat neighborhood of central Beirut, the Lebanese Ministry of Public Health said.

The Israeli Defense Forces did not issue a warning before conducting this airstrike on central Beirut Monday.

At least 28 people were killed and 107 were wounded across Lebanon from Israeli attacks Monday, the Lebanese Ministry of Public Health said.

Overall, 3,544 people have been killed, and 15,036 have been injured since Israel's increased attacks on the country began in mid-September, the Lebanese Ministry of Public Health said in a post on X.

U.S. envoy Amos Hochstein met with Lebanese House Speaker Nabih Berri in Beirut Tuesday, according to Lebanese state media.

After meeting with Hochstein for two hours, Berri said the cease-fire negotiations were "good in principle," but warned Israel could change its minds about the proposal as it has done before.

Berri said the U.S. is managing guarantees about Israel's position on the proposal, according to Lebanese state media.

-ABC News' Morgan Winsor

At least five people were killed and 31 wounded by an Israeli strike in the Zuqaq al-Blat neighborhood of central Beirut on Monday, according to the Lebanese Ministry of Public Health. Two other people are missing.

The Israel Defense Forces did not appear to issue any public evacuation order prior to the strike. ABC News has reached out to the IDF for comment on the target of the strike.

The attack made Monday the second consecutive day of Israeli strikes within central Beirut. To date, the vast majority of airstrikes on the capital have hit the southern Dahiya suburb, known as a Hezbollah stronghold.

Israel has intensified its bombardment in and around Beirut over the past week, while Hezbollah has continued missile fire into Israel. Fresh discussions are ongoing as to a potential cease-fire to end the fighting.

-ABC News' Morgan Winsor, Jordana Miller and Joe Simonetti

Israeli Foreign Minister Gideon Saar on Tuesday published a letter sent to the president of the United Nations Security Council in which he called for "immediate action regarding the activity of the pro-Iranian militias in Iraq, whose territory is being used to attack Israel."

"The Iraqi government is responsible for everything that happens on its territory," Saar wrote, noting Israel's right to self-defense.

"I called on the Security Council to act urgently to make sure that the Iraqi government meets its obligations under international law and to make these attacks on Israel stop," Saar said.

Iran-backed Iraqi militias have been launching drone attacks into Israel from the east in support of Hamas in the Gaza Strip and Hezbollah in Lebanon, with whom Israeli forces have been engaged since Hamas' Oct. 7, 2023, attack into southern Israel.

-ABC News' Jordana Miller