Sata was summoned by the Anti-Money Laundering Unit of DEC over a financial transaction involving $100,000 at a local bank, Finance Bank.

Authorities are yet to give the exact number of people who have been seriously injured in the fracas.

The outspoken opposition leader was also caught up in the confusion but police managed to whisk him into their offices where he was interrogated.

DEC has earlier refused to allow the horde of supporters and on-lookers to enter its premises, insisting they only wanted Sata and his lawyers.

But Sata’s cadres and sympathizers remained adamant forcing anti-riot police to fire teargas canisters.

Meanwhile, DEC spokesperson John Nyawali told reporters in Lusaka, “DEC recorded the statement against Sata as part of the ongoing investigation involving the transaction”.

Nyawali said several other Finance Bank employees and some officials at Action Auto who are believed to have been involved in the transaction have also been interviewed.