Police Commissioner in South Africa's Gauteng Province, Tommy Mthombeni, says investigators are making progress in tracking down those responsible for a mass shooting at the Jumpers informal settlement in Cleveland, east of Johannesburg. Twelve people were killed when gunmen reportedly opened fire near a tavern on Tuesday night. The number of people injured has risen from 10 to 15. Police say the motive for the attack remains unclear and is a key focus of the ongoing investigation. No arrests have been made. Sashin Naidoo reports

<p>Police Commissioner in South Africa's Gauteng Province, Tommy Mthombeni, says investigators are making progress in tracking down those responsible for a mass shooting at the Jumpers informal settlement in Cleveland, east of Johannesburg. Twelve people were killed when gunmen reportedly opened fire near a tavern on Tuesday night. The number of people injured has risen from 10 to 15. Police say the motive for the attack remains unclear and is a key focus of the ongoing investigation. No arrests have been made. Sashin Naidoo reports</p>