New Delhi, Nov. 22 -- Philippine police and other law enforcement teams were deployed to arrest 18 suspects in a corruption scandal involving flood control projects that has sparked huge protests and forced implicated congressional leaders to step down, President Ferdinand Marcos Jr. and other officials said Friday.

Marcos has been scrambling to quell public outrage over the massive corruption, which has been blamed for substandard, defective or non-existent flood control projects in a poverty-stricken country, long prone to deadly typhoons, floodings and extreme weather in tropical Asia.

The warrants were issued by the Sandiganbayan, a special anti-corruption court, against Zaldy Co, who has resigned from the House of Representatives a...