Query question - how to do this

I have a table that contains a supplier_number, and a
status_flag (y or n). There can be multiple occurances
of each supplier number.

For my report, I need to show (count) the number of
occurances of each supplier_number, and then count the
total number of status flag Y and count the total
number of status_flag N for each supplier.

I use this query :
select supplier_number, status_flag, count(*) as cnt
from table
group by supplier_number, status_flag
order by supplier_number,status_flag

However, this gives me multiple rows per supplier number, one row for the Yes count and another row
for the N count.

But I need the report output to have one row per supplier, listing the three columns (supplier number, total yes count, total no count)

How do I write the query for this ?

Thanks for any help.