The Special Task Force investigating allegations of funds having been channelled to the Prime Minister's personal accounts removed documents from the office of 1Malaysia Development Berhad in Jalan Sultan Ismail here.

Several officials of the task force came to the office, located on the eighth floor of Menara IMC, at 10.30 am and were seen leaving at about 6.30 pm.

About 20 boxes of what is believed to be documents were taken away in a police truck.

Eight officials were seen emerging from the front entrance of the building carrying a box, believed to contain documents, as well as a computer CPU.

Several police personnel applied a tight cordon around the area.

It is not known, however, if officials of the task force would make more visits to the 1MDB office.

The task force, comprising the Attorney-General's Chambers; Bank Negara Malaysia; the Royal Malaysia Police and the Malaysian Anti-Corruption Commission, is conducting a probe following allegations by The Wall Street Journal that 1MDB funds had been channelled into the personal bank accounts of Prime Minister Datuk Seri Najib Razak.

1MDB confirmed that a number of officials from the task force visited its office.

"They were provided with a number of documents and materials to aid with the investigation currently taking place," the government investment company said in a statement.