BN's Sungai Buloh candidate Khairy Jamaluddin has threatened to take legal action against his opponent, Pakatan Harapan's R Ramanan if the latter accuses him of corruption.

This comes after Ramanan challenged him to explain "the ECM Libra issue", in which the health minister was embroiled in 2006.

"I am saying this clearly. If you want to make an accusation...