Transaction log not truncating

I landed into this strange problem where i was not able to truncate the log of the database i tried the backup log and then shrinkfile a no of times with no luck.

Then i remembered that the database was being replicated using transactional log shipments so maybe there was some issue there. Thus started to look for any open transactions which might be holding the transaction logs used the command
DBCC OPENTRAN(db_name)

Transaction information for database 'BATEELNAV5'.

Replicated Transaction Information:
Oldest distributed LSN : (0:0:0)
Oldest non-distributed LSN : (28941:199:1)
DBCC execution completed. If DBCC printed error messages, contact your system administrator.

Got a message which confirmed that there was a replication transaction which was holding the database I got rid of the same using

use
go
sp_repldone @xactid = NULL, @xact_segno = NULL, @numtrans = 0, @time = 0, @reset = 1
go


I was then able to truncate the log successfully.