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Visitors to four properties could be jailed as police crack down on drug dealing along the coast.
Orders have been served on addresses in Margate Road in Ramsgate, Dundonald Road in Broadstairs and two in Millmead Road, Margate.
Officers applied for the restrictions at magistrates' court amid fears some of the buildings are being used as a base by county lines drug dealers.
They have also received reports of unruly behaviour - including threats and intimidation to neighbours - at the properties.
Ch Insp Ed Ruffle said: "We do not underestimate the impact that drug dealing and the associated disorder can have on the lives of those who live or work nearby.
"We will continue to apply for house closures if that is the appropriate course of action, whenever a property is linked to ongoing criminal activity in an area."
Residents have also noted people and vehicles acting suspiciously at unusual times of the day near the buildings.
"If issues return at the end of the three-month closure period, then we will show no hesitation in applying again for the same property..."
The orders mean that visiting the four addresses has been restricted, with only certain people agreed by the courts allowed to access or continue living at the properties.
Anyone else found inside them could be fined or sent to prison.
Notices have been placed on the doors, warning that it is an offence to enter.
"If issues return at the end of the three-month closure period, then we will show no hesitation in applying again for the same property, as we have done for the flat in Dundonald Road," Ch Insp Ruffle added.
"These orders, coupled with the proactive work of officers to identify and arrest drug dealers, should give the strong message that we do not tolerate this unlawful behaviour."
Residents can report any suspected drug-related crime to police, either by calling 101 or clicking here.
To get the latest updates in ongoing cases, police appeals and criminals put behind bars, click here