Protesters clashed with Lebanese security forces at anti-government demonstrations in Beirut on Thursday.
Officers deployed tear gas on dozens of people near parliament.
Anger has gripped Beirut in the wake of the blast which left 135 dead and 5,000 injured amid claims officials knew the warehouse at the centre of the tragedy was a ticking timebomb.
Tensions have reached boiling point among the many mourning lost relatives as government and customs bosses in Lebanon continue to blame each other for the tragedy.
'Hang up the nooses' is now trending across Lebanese social media in an indication of how the people of the broken capital now feel.
And Ramez al-Qadi, a prominent TV anchor, tweeted: "Either they keep killing us or we kill them."
The city's mood changed from one of utter devastation to fury after it emerged state officials were aware of the warehouse packed with illegal chemicals and had been warned it could "blow up all of Beirut."
The revelation fuelled new fury among a population already rocked by a financial crisis which has left half the country in poverty.
Demonstrators in downtown Beirut attacked the convoy of former Lebanese prime minister Saad Hariri and brawled with his bodyguards in the most overt display of anger since Tuesday's explosion.
And activists have vowed to take on the government once the city is eventually cleared of tons of blast debris.
Fury at Lebanon officials who knew about bags of explosive chemicals ‘that could blow up all of Beirut’
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