The first bomb was found during an alert at Ramoan Drive on Saturday morning.
A device found in the Glencolin Walk area of west Belfast later on Saturday has also been declared viable.  There is another security alert in Ballygally in County Antrim.
Both alerts in west Belfast have now ended.
The alert in Glencolin Walk followed the discovery of a suspicious object.
The Glen Road was closed between the junctions of Shaw's Road and Suffolk Road.
