BEIRUT: Lebanese protesters stormed the foreign ministry in Beirut on Saturday as anger exploded over a deadly blast that made hundreds of thousands homeless and shocked the world.
Thousands of demonstrators, some of them brandishing nooses, had descended on the city centre to vent their fury at politicians they blame for Tuesday's explosion, which levelled Beirut port and killed 158 people.
Amid the outpouring of rage, Prime Minister Hassan Diab said he would seek early elections, saying it was the only way to "exit the country's structural crisis".

Demonstrators marched through streets ravaged by the blast, gathering in the central Martyrs' Square, where a truck was on fire, as their grief gave way to anger.
As security forces fired tear gas to disperse strone-throwing demonstrators who tried to push their way toward parliament, a group led by retired Lebanese army officers stormed the foreign ministry and declared it the "headquarters of the revolution".
"We are taking over the foreign ministry as a seat of the revolution," Sami Rammah, a retired officer, announced by loudspeaker from the ministry's front steps.

"We call on all the anguished Lebanese people to take to the streets to demand the prosecution of all the corrupt," appealing to the international community to boycott the government.
The Lebanese Red Cross said it had taken 55 people from the protest to nearby hospitals and treated another 117 at the scene, without specifying who they were.
Two days after a landmark visit by French President Emmanuel Macron, activity was growing to drum up international support for the disaster-hit country ahead of a Sunday virtual aid conference.
For the fourth day running, Beirut woke to the sound of broken glass being swept on the streets, its inhabitants taking stock after one of the biggest blasts of its kind in recent history.
A fire at the port on Tuesday ignited a stock of ammonium nitrate, triggering an explosion that was felt as far away as Cyprus and destroyed entire neighbourhoods.
It was widely perceived as a direct consequence of corruption and incompetence, perhaps the most egregious case of callousness on the part of a ruling elite that was already reviled.
"You were corrupt, now you are criminals," read one banner at the demonstration, while protesters chanted: "Revenge, until this regime reaches an end."
"We are hanging the nooses because the same people have been ruling us for 30 years," said Jad, a 25-year-old man working in advertising.
Rita, whose home was gutted by the blast, said: "They have robbed us of everything. We have nothing left: no dreams, no future... no dignity, no money, and now, no houses."
"We should not be forced to live this way," added the 33-year-old protester.
At the nearby port, international rescue teams searched the rubble as the chances of finding survivors slipped away.
The health ministry said 158 people were confirmed to have died in the disaster, while at least 6,000 were wounded and 21 still missing.
The Netherlands announced that its ambassador's wife was among the dead.
The blast has prompted an impressive aid response from both inside and outside Lebanon, but demonstrators' chants and the mock gallows they set up in the street made it clear that people want heads to roll.
But some of Lebanon's leaders seemed to consider the outpouring of international solidarity as an opportunity to break the government's diplomatic isolation.
A virtual international donor conference launched by Macron, with US President Donald Trump and other top leaders in attendance, is scheduled for Sunday.
Lebanon defaulted on its debt for the first time ever this year and the current leadership has so far failed to address the economic emergency and agree on the reforms needed to negotiate an international rescue package, despite intense Western pressure.
Speaking on Friday evening, Aoun said "the explosion has led to the lifting of the isolation".
Hassan Nasrallah, the chief of powerful Shiite movement Hezbollah, said the disaster had created "an opportunity" to get the world to work with Lebanon again.
Three senior diplomats were in Beirut Saturday in a show of solidarity with the disaster-hit city, where 300,000 people were made temporarily homeless by the port explosion.
Arab League chief Ahmed Aboul Gheit met top officials ahead of expected visits by Turkish Foreign Minister Mevlut Cavusoglu and the President of the European Council, Charles Michel.
So far 21 people have been detained over the blast, including Badri Daher, director-general of Lebanon's customs authority.
But Aoun has rejected calls backed by Macron for an international, independent investigation into the blast.
Christian MP Samy Gemayel announced Saturday during a funeral service for his Kataeb party's secretary general, who was killed in the explosion, that he and his two colleagues in parliament were resigning.
He was the fifth lawmaker to quit since the blast.
Few Lebanese seemed to have any trust that the leadership would incriminate its own in an investigation chaired by senior officials.
Analyst Nasser Yassin of the Issam Fares Institute for Public Policy and International Affairs, said Lebanon's reviled leaders were clearly seeking to take advantage of the situation.
"The fear is that the authorities will benefit from this great disaster and from the international and Arab attention they are getting," he said.