On-the-run businessperson Jho Low and his associate Eric Tan Kim Loong are still on the Singaporean police's wanted list for their alleged involvement in the case of misappropriation of money from 1MDB.

"To date, both the warrants of arrest and red notices are in force.

"Low and Tan remain key persons of interest to Singapore," a The Edge Markets report today quoted a Singapore Police Force spokesperson saying, yesterday.

The arrest warrants for Low and Tan were first issued in April and May 2016 via Interpol's 'red notice'.

Previously, Singaporean Monetary Authority managing director Ravi Menon had said that Singapore authorities are still investigating 1MDB-related transactions.

He also said Singapore was "looking forward" to questioning certain unnamed individuals.

According to Ravi, Singapore and Malaysia are cooperating in this investigation and that while Singapore has been providing information to Malaysia since 2015, the pace of the investigation had stepped up since the new government came into power in Malaysia.

"Singapore has been providing Malaysia with information on 1MDB-related fund flows, since March 2015 to date, and this has been acknowledged by Malaysia," the police spokesperson said yesterday.

Yesterday, the inspector-general of police (IGP) Mohamad Fuzi Harun said police had been searching for Low in Hong Kong, but they discovered Low had left for Macau when they arrived.

"The latest we know he was in Macau. In fact the other day we sent our team to Hong Kong, but immediately when we arrived, he left to Macau," Fuzi had said.

The special administrative region of Macau does not have any extradition treaties with other countries.