Read txt file with commas in matlab

I have a txt file:

1,6 2 6,5 5 ...  // ~ 1000 columns 
0 1 4 2,5 ...
... // ~1000 rows

that is, "," instead "."

How to read this?

1.6 2 6 5 ...
0 1 4 2.5 ...
...

Many thanks!