A Singapore Boeing 777-300, registration 9V-SWD performing flight SQ-825 from Shanghai Pudong (China) to Singapore (Singapore), departed Pudong's runway 35R at 00:35L (17:35Z Sep 1st), after takeoff the autopilot was engaged. Climbing through about 360 feet AGL the GPWS sounded "DON'T SINK!" three times. The crew performed throubleshooting and changed the pitch mode, however another "DON'T SINK" follwed by a "TERRAIN! TERRAIN! PULL UP!" GPWS alert occurred. The crew disengaged the autopilot, increased thrust and pitch, the warnings ceased and the aircraft climbed to safety and continued to destination for a safe landing.
On Sep 5th 2020 Singapore's Transportation Safety Investigation Board (TSIB) reported the occurrence was rated an incident and is being investigated by the TSIB. The final investigation report is already being drafted.