Teoh Beng Hock’s sister urged the United Nations Human Rights Council (UNHRC) to press Malaysia for an independent probe into the ex-political aide’s death, underscoring persistent concerns over custodial deaths in the country.

Speaking in Geneva, Switzerland, Lee Lan said: “I have travelled thousands of miles to bring this demand for justice before you. I ask you to press for accountability.”

She told delegates that 17 years after Beng Hock died in MACC custody...