Manila, Nov 16 (AP) Hundreds of thousands of Filipinos gathered on Sunday in the capital in the largest rally so far to demand accountability over a flood-control corruption scandal that has implicated powerful members of Congress and top government officials.

Various groups have protested in recent months following the discovery that thousands of flood defence projects across one of the world's most typhoon-prone countries were substandard, incomplete or simply did not exist.

Government engineers, public works officials and construction company executives have testified under oath in hearings by the Senate and a fact-finding commission that members of Congress and officials at the Department of Public Works and Highways took kickbacks from construction companies to help them win lucrative contracts and avoid accountability. Most denied the allegations.

Interior Secretary Jonvic Remulla said about 320,000 members of the Iglesia Ni Cristo, or Church of Christ, led the start of the three-day rally in Manila's Rizal Park, many wearing white and carrying anti-corruption placards. Hundreds, including retired generals, held a separate anti-corruption protest late Sunday at the “People Power” monument in suburban Quezon City.

Iglesia is an influential group that votes as a bloc and is courted by political candidates during elections.

The police, backed by the military, went on full alert and deployed thousands of personnel to secure the weekend rallies, although the government expects them to be peaceful, according to a confidential security assessment seen by The Associated Press.

During a Sept. 21 anti-corruption demonstration, a few hundred black-clad protesters threw rocks, bottles and firebombs at police near the presidential palace in Manila, injuring more than 100 officers. Criminal complaints have been filed against 97 protesters.

The presidential palace went on security lockdown over the weekend, with major access roads barricaded by anti-riot police, cargo containers and barbed wires.

National police chief Lt. Gen. Jose Melencio Nartatez Jr. ordered law enforcement to exercise “maximum tolerance” in Sunday's rallies.

Marcos promises quick action as outrage over corruption grows Flood control is an especially sensitive issue in the Philippines, one of Asian countries most prone to deadly typhoons, flooding and extreme weather. Two typhoons left at least 259 dead this month, mostly from flash floods and landslides, and affected millions of others.

President Ferdinand Marcos Jr. has been trying to quell public outrage and street protests sparked by the scandal, saying on Thursday that many of the powerful senators, members of Congress and wealthy businesspeople who were implicated would be in jail by Christmas.

Marcos said an independent fact-finding commission he created has already filed criminal complaints for graft and corruption and plunder against 37 suspects. Criminal complaints have also been filed against 86 construction company executives and nine government officials for allegedly evading nearly 9 billion pesos ($152 million) in taxes.

Among those accused are lawmakers opposed to and allied with Marcos, including former House of Representatives Speaker Martin Romualdez, the president's cousin and a key ally, and former Senate President Chiz Escudero. Both have denied any wrongdoing.

Sen. Bong Go, a key ally of former President Rodrigo Duterte, has also been accused of involvement in corruption in flood control and other infrastructure projects. He has denied the allegations.

Duterte, a harsh Marcos critic, was detained by the International Criminal Court in the Netherlands in March for alleged crimes against humanity over his brutal anti-drugs crackdowns.

His daughter, the current vice president, said Marcos should also be held accountable and jailed for approving the 2025 national budget, which appropriated billions for flood control projects.

There have been isolated calls, including by some pro-Duterte supporters, for the military to withdraw support from Marcos, but Armed Forces of the Philippines chief of staff Gen. Romeo Brawner Jr. has repeatedly rejected those calls.

“With full conviction, I assure the public that the armed forces will not engage in any action that violates the Constitution," Brawner said. “Not today, not tomorrow and certainly not under my watch.” (AP) SKS SKS