A blast bomb has exploded in the Beersbridge Road area of east Belfast.
Sources are blaming the UVF for the latest incident
No-one was injured in the incident which happened in Evelyn Avenue on Saturday night.
One blast bomb exploded, smashing the windows of several houses.
Another device, which was found nearby, was made safe by the Army early on Sunday morning.
Detectives are exploring a possible link between the blast and an earlier bomb attack in the same area of Belfast.
Loyalist sources are blaming the Ulster Volunteer Force (UVF) for the latest incident.
'UVF behind murder'
On Saturday morning, loyalist sources blamed the UVF when a substantial device was left outside another house in the Beersbridge Road area.
Two houses were damaged and a 70-year-old man was treated for shock.
There is a history of feuding involving the Ulster Volunteer Force (UVF) and the smaller Loyalist Volunteer Force (LVF).
The LVF emerged out of the UVF in 1996 after a row involving one of its leaders, Billy Wright, who was "stood down". There have been many exchanges of gunfire and past killings between the two groups.
Two houses were damaged in Saturday's explosion
The UVF was behind the murder of Brian Stewart in east Belfast on Tuesday.
The killing has been linked to feuding with the Loyalist Volunteer Force.
Alliance Party councillor Naomi Long said the attackers did not care whose lives they endangered.
She said she was angry and disgusted at the incident.