Hundreds of anti-government protesters blocked roads in Beirut and in other parts of Lebanon, in a bid to press for political change.
A semblance of normality had gradually returned to the country last week after Saad al-Hariri resigned as prime minister.
While banks reopened for the first time in two weeks, schools continued to remain closed.
Hariri continues in a caretaker capacity until a new government is formed.
The nationwide protests were triggered on October 17 after the government announced its decision to tax WhatsApp messages.
US hits five Iranian oil tankers after attack on Navy ships
UK flights resume after major air traffic outage but airports warn of more disruption
Jordan intercepts 18 Iranian ballistic missiles
Air traffic control issue disrupts flights at major UK airports
At least 73 injured after Houthi rebels attack Saudi civilian and energy facilities
