BEIRUT — Dozens of people were wounded in overnight clashes between security forces and supporters of Lebanon's two main Shiite political parties, the civil defense said on Tuesday.

It was the latest incident of violence in what have been largely peaceful protests since Oct. 17 against a political class deemed inept and corrupt.

The street movement pushed the prime minister to step down on Oct. 29, but the country's bitterly divided political parties have failed to agree on a successor.

Shortly before midnight on Monday, young supporters of Shiite political parties Hezbollah and Amal tried to attack the main anti-government protest camp in central Beirut, a photographer reported.

The angry young men arrived on foot and scooters, apparently fired up by a video shared online that they deemed offensive to Shiites.

They lobbed stones and fireworks towards the anti-riot police trying to prevent them from entering the largely empty main square.

The counterdemonstrators also torched several cars. The security forces responded with teargas and a water cannon.

Civil defense said 23 people were taken to hospital, while 43 were treated at the scene. It was not immediately clear from which side the wounded were.

In the southern city of Sidon, young protesters also attacked a protest camp during the night, destroying several tents, a correspondent reported.

Lebanese academic Imad Salamey said the Monday night clashes could have been an attempt to undermine the protests.

"Stirring sectarian strife is one of the ways used by those in power to divide Lebanese and weaken the street movement," he said.

But "the economic crisis today reflects a complete regime crisis that cannot be solved or faced with sectarian movements", warned the professor at the Lebanese American University.

Lebanon's economy is sliding towards collapse, after years of political deadlock compounded by the outbreak of civil war in neighboring Syria in 2011.

The World Bank projects it will contract by more than 0.2 percent this year.

It has warned that poverty could shoot up from a third to half the population if the deadlock is not resolved.

Salamey said solidarity between Lebanese has only increased "after people started losing their jobs and companies and being unable to withdraw money from the banks".

"The economic crisis has broken the barrier of fear, or at least the barriers between different religious sects," he said.

The international community has urged Lebanon to speed up the formation of a new government to implement economic reforms necessary to unlock billions of dollars in foreign aid.

Prime minister Saad Al-Hariri stepped down under street pressure less than two weeks into the protests.

But no consensus has yet been reached on a replacement and parliamentary consultations to name a new premier have twice been postponed, the latest on Monday.

Young Hezbollah and Amal supporters have attacked anti-government demonstrators on several occasions over the past two months, mostly angered by what they viewed as insults to their leaders.

But the protests themselves have been mostly peaceful — with the exception of some unprecedented clashes at the weekend.

On Saturday, demonstrators threw water bottles and firecrackers at the security forces who responded with tear gas and water cannon.

On Sunday night, a new round of clashes erupted for several hours, though less violent than the previous night. — AFP