SINGAPORE - Singapore’s finance minister, who is regarded as a potential future premier, collapsed during a cabinet meeting Thursday due to a stroke, the country’s premier said. Heng Swee Keat, 54, was rushed to hospital where doctors attended to him, Lee Hsien Loong said in a Facebook post. “We were having our weekly cabinet meeting just now when Heng Swee Keat suddenly collapsed,” Lee said. “The doctors in Cabinet (we have three) attended to him immediately. We called an ambulance, which took him to TTSH,” he added, referring to the government-run Tan Tock Seng Hospital.