PM Wickremesinghe declares emergency across Sri Lanka; protestors head towards his office

This is because once Rajapaksa departs, under Sri Lanka's constitution, Wickremesinghe would automatically become acting President for 30 days, BBC reported.

Sri Lanka Crisis

The Sri Lankan Prime Minister Ranil Wickremesinghe on Wednesday ordered to impose a curfew in the Western province with immediate effect and to impose emergency law across the island country, a spokesperson in the Prime Minister's office has said.

The Prime Minister has also ordered the security forces to arrest people acting in a riotous manner and the lorries they are travelling, BBC reported.