SABC News and Current Affairs — US President Barack Obama has called for collective efforts to counter the threat posed by the Islamic State to global security**Johannesburg Emergency Services are on high alert after predictions of more heavy rain.**The Higher Education department has slammed the violent actions by protesting students which have turned university campuses into battlefields. **The M1 freeway at the Grayston off-ramp in Sandton has been reopened after last night's horror crash in which five people were killed. SUDISHALinks: Listen & Download,