rows_processed in v$sql is 0

A delete statement running for 2 hrs but rows_processed in v$sql is 0

SQL> select event, sql_id,last_call_et ,program,module from v$session where status='ACTIVE' and username<>'SYS';

EVENT                                                            SQL_ID
---------------------------------------------------------------- -------------
LAST_CALL_ET PROGRAM
------------ ------------------------------------------------
MODULE
----------------------------------------------------------------
db file sequential read                                          bm1c33g791t2n
        4504 Toad.exe

SQL> select rows_processed from v$sql where sql_id='bm1c33g791t2n';

ROWS_PROCESSED
--------------
             0

Regards,

Vishal