Five men have been arrested in connection with a bomb explosion in Lurgan last Saturday.
Three men aged 31, 36 and 46 were arrested on Thursday. Another two men, aged 28 and 46, were arrested this morning (Friday).
A number of properties had been searched and several items removed for forensic examination.
They are being questioned at Antrim police station.
Homes were evacuated in the Victoria Street area after officers responded to reports of an unexploded device.
The bomb later exploded as police were on scene.
A number of police officers were also attacked with petrol bombs and bricks during the alert.
Detective Superintendent Karen Baxter from Serious Crime Branch said: “A number of properties have been searched and several items have been removed for forensic examination. The suspects have been taken to the Serious Crime Suite at Antrim police station for questioning.
“This is an active and ongoing investigation. I would like to thank the community for their continued patience and support. I would again urge people to remain vigilant. If you notice anything suspicious please contact us straight away on 101 or 999 in an emergency.
“If you know anything about the incident last weekend when a report of a device, which turned out not to be viable, was made to lure police into the area and a second significant device exploded, please contact police.”
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