MANILA, Philippines — Only one southern Philippine province and its war-battered capital will be placed under a mild lockdown and the rest of the country will be put under more relaxed quarantine restrictions next month to boost the battered economy despite the country having the most number of coronavirus infections in Southeast Asia.

President Rodrigo Duterte announced the quarantine restrictions for October in televised remarks Monday night. Lanao del Sur province and its capital, Marawi city, will fall under a lockdown starting Thursday due to infection spikes in recent weeks.

Most of Marawi’s commercial and downtown areas were destroyed after hundreds of Islamic State group-aligned militants laid siege to the mosque-studded city in May 2017 and the military launched a massive offensive and airstrikes to quell the five-month uprising. Many residents remain displaced.

Metropolitan Manila and five other cities will remain under general quarantine restrictions with more businesses and public transport allowed to partially operate on condition people wear face masks and shields and stay safely apart.

Classes in public schools are scheduled to resume online belatedly on Oct. 5 due to the pandemic.