Police have asked all in the area to be cautious, as they prepare to move on a duplex house at the Barahaat neighbourhood, where a huge amount of explosives is suspected to be stored.
"We are asking everyone, including journalists to be extremely careful as anything can happen," Superintendent of Police Md Shahjalal told bdnews24.com on Saturday before the raid kicked-off.
Members of SWAT, RAB and police were seen surrounding the house, within half a kilometre of the Sylhet-Moulvibazar Highway, on Saturday morning. Fire trucks and ambulances have been also been kept on standby.
Police personnel have been deployed in the area designated on the Sylhet-Moulvibazar Highway for media persons covering the raid.
Check-posts have been put up at various spots across the town, including the court.
Loud blasts and noise of intermittent gunfire have been heard from the militant hideout after the police stopped their operation on Friday night.
Earlier, intermittent blasts and intense firing had continued during the day.