Riot police deployed water cannons on Tuesday against protest activists gathered in central Beirut.
The groups of protesters made an attempt to break through to the parliament building, TASS reported.
A meeting of the Chamber of Deputies was set be held on a vote of confidence in the government led by PM Hassan Diab.
The cabinet approved on Feb. 6 a reform program to stabilize the situation in the country's economy. The anti-crisis plan provides for a number of painful measures to prevent a financial collapse, given that Lebanon's national debt reached $ 85 billion, and the national currency - the Lebanese pound - depreciated by 33%. The cabinet is also preparing judicial reform and a series of anti-corruption measures.
Lebanese President Michel Aoun instructed Dec. 19 last year to form a new cabinet for independent politician Hassan Diab after consultations with parliamentary factions. The candidacy of Diab, who served as Minister of Education in 2011-2014, was supported by 69 out of 128 MPs. The composition of the government was approved on January 21, it included 20 technocrats.