Mustapha Adib, Lebanon's ambassador to Germany, was designated Prime Minister.
The August 4 explosion hit Beirut port and destroyed thousands of buildings.
Former Lebanese Prime Minister Rafik Hariri in Beirut was killed in a car bomb in Beirut more than 15 years ago.
The three men died while trying to put out a fire that broke out before the port exploded.
Friends and family buried Ralph Malahi, a 23-year-old firefighter who was among 10 firefighters killed in Beirut's massive explosion. Malahi was given a hero's funeral, starting from the firefighters' base.
Both Lebanese protesters and members of the international community have called for an impartial investigation into the incident that killed more than 170 people and injured thousands.
The Beirut explosion is the latest disaster to strike the country. Young people are outraged and fighting for a new future. This is their story.
The Hollywood actor said he made the donation on behalf of the late chef Anthony Bourdain, who had described the restaurant as a "legendary" spot.
Shady sustained major injuries and more than a week later, his face and forearms bear impressive scars. "God gave me another life, a second chance. I don’t want to live it here," he said.
Lebanese people marched solemnly from Beirut’s neighbourhood of Gemmayze towards the port with a mix of grief and rage, one week after a blast at the port killed at least 171.
Thousands of people marched near the devastated port, remembering those who died in the most destructive single blast to hit the country.
Hedwig Waltmans-Molier succumbed to her injuries in hospital on Saturday following last week's explosions in Beirut.
Fury mounted in Lebanon in the wake of the massive explosion which devastated much of Beirut, as protesters poured into the streets to call for political change.
Protesters showed up in large numbers ahead of a planned anti-government demonstration following the explosion in Beirut that killed more than 150.
Lebanese student Chadi Haddad went to the nearby Saint George hospital in Beirut. Amidst volunteers clearing up the rubble, he started playing the hospital’s piano.
300 000 people became homeless in Beirut after a massive explosion partly levelled the city on Tuesday, August 4. The photographs of Beirut residents inside their homes reveal the scale of devastation caused to the Lebanese capital.
"Entrepreneur Merhi Abou Merhi, the owner of the Orient Queen cruise ship, has filed a lawsuit against all those responsible for this catastrophic blast," the National News Agency said.
A Russian search and rescue team in Beirut has unearthed three bodies under the rubble near the city's port, three days after the deadly explosion that killed more than 150 people.
Rescue teams continue to search for survivors in the rubble of Beirut's port, nearly three days after a massive explosion sent a wave of destruction through Lebanon's capital, killing more than 150 people and wounding thousands.
Security agencies raised alarms at least 10 times over the past six years about a massive stockpile of explosive chemicals held unsafely in the heart of Beirut.
Before this week's devastating explosion, Lebanon's economy was predicted to shrink by 12 per cent this year and its currency had lost 80 per cent of its value since October.
Discontent is growing in Beirut after the deadly explosion in the Lebanese capital on Tuesday.
Volunteers from around Beirut worked to clean up a hard-hit residential area near the port following the massive explosion that devastated much of the city on Wednesday.
Amid the debris and damage of an apartment caught in Beirut's blast, an elderly woman plays Auld Lang Syne on the piano.
"We believe Lebanon should be placed under French mandate in order to establish clean and durable governance," reads a petition that has collected more than 50,000 signatures.
An investigation by The Cube has tracked down a ship that arrived in the Lebanese capital nearly seven years ago.