Africa - flights being cancelled in South Africa due to South American ash cloud?

I just read a newspaper article that domestic flights within South Africa had been cancelled due to the ash cloud from Chile. I have an upcoming trip to South Africa and am not overly amused by the prospect of being stuck/having to reorganize my entire itinerary.

I can´t seem to find a huge amount of current info regarding flights to/within South Africa, so I´d like to ask those who are there right now for their input:

1) Have many domestic flights been affected/cancelled?
2) How about int´l flights?
3) Is there any info on whether this situation is going to continue for the next coming weeks or is it more like a one-time indicent? (it´s quite a distance between Chile and South Africa, must be quite a bad ash cloud)

Thanks in advance!

Check the local airlines sites.

If you hadn't heard, the ash cloud disrupted flights in and out of New Zealand, Melbourne, Tasmania and Perth last week.