CNN —Singapore’s Transport Minister S. Iswaran has resigned after being charged with corruption on Thursday, the prime minister’s office said, confirming a historic development for a city state that prides itself on having a squeaky-clean government. The charges against Iswaran are part of the biggest corruption probe to engulf Singapore’s ruling People’s Action Party (PAP) in decades. Singapore’s anti-graft agency, the Corrupt Practices Investigation Bureau (CPIB), which reports directly to Prime Minister Lee Hsien Loong, has been leading investigations into Iswaran’s case. Lee is the eldest son of Lee Kuan Yew, Singapore’s first prime minister and founding father. The corruption probe into Ong and Iswaran comes at a sensitive time for Lee as he plans to step aside after nearly 20 years leading the country.

---

Persons: Iswaran, Tan Kiat Pheng, Ong Beng Seng, Ong, Lee Hsien Loong, Lee, ” Lee, Lee Kuan Yew, Singapore’s, ” Eugene Tan, ” Organizations: CNN, Singapore’s, Iswaran, Action Party, Singapore, Prix, Practices, Party, Government, Ong, Singapore Management University Locations: Singapore