Lebanon's banks will remain closed on Monday due to nationwide protests, the Association of Banks in Lebanon announced on Sunday, according to the country's state news agency. Tens of thousands of people took to the streets for a third day of protests against tax increases and alleged official corruption. The protesters took to the streets despite calls for calm from politicians and dozens of arrests on Friday. Many waved billowing Lebanese flags and insisted the protests should remain peaceful and non-sectarian. The demonstrators are demanding a sweeping overhaul of Lebanon's political system, citing grievances ranging from austerity measures to poor infrastructure.