Lebanese security forces said they blocked cars, buses and other vehicles from parking near the central square in Sidon. Most vehicles were prevented from entering the city center Tuesday, Lebanese newspaper The Daily Star reports.
The newspaper said volunteer guards were deployed to ensure areas mosques are secured. A volunteer force was blocking road traffic and setting up checkpoints near religious facilities.
Lebanese lawmakers held an extraordinary session Monday to weigh their security options following a string of bombings across the country. Last week, police in Sidon blocked demonstrators rallying in support of controversial Sunni cleric Ahmad al-Assir.
More than a dozen Lebanese soldiers died during a June raid on Assir's compound in Sidon. The cleric has been critical of Shiite movement Hezbollah for fighting alongside pro-government forces in Syria.
Hezbollah strongholds in southern Beirut have come under attack since it admitted to fighting in Syria this year.
Lebanon's national security is tested by civil war in neighboring Syria. Lebanon broke free of Syrian dominance during its Cedar Revolution in 2005.
More than 40 people were killed during bombings outside Sunni mosques last week in the northern Lebanese city of Tripoli.
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