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Roadblocks were set up overnight as part of a police investigation into the murder of a 22-year-old woman who was found strangled.The body of Ffion Wyn Roberts was found in a ditch at Porthmadog, Gwynedd, on Saturday, 10 April.
Vehicles were stopped in Church Street as officers sought potential witnesses who may have driven through the area on the night of the murder.
Police spoke to motorists between 2200 BST on Friday and 0500 BST on Saturday.
Officers said they were continuing to receive "excellent support" locally.
Ms Roberts was last seen alive two weeks ago after a Friday night out celebrating a friend's birthday in nearby Tremadog.
She had set off from the Union pub in Tremadog to walk home in the early hours of 10 April and is believed to have walked along Church Street.
Her body was found a few hours later in a stretch of water in Porthmadog town centre known as Y Cyt.
Police are continuing to examine CCTV footage, photographs from mobile phones, and information given by members of the public.
CCTV footage
Det Supt Peter Chalinor, the senior investigating officer, said: "We have in excess of 60 officers working on the investigation.
"House-to-house inquiries are continuing and we have a number of officers dedicated to reviewing CCTV footage.
"A number of people have also come forward with pictures taken in the public houses where Ffion was on the night of Friday, April 9 and the early hours of Saturday, April 10, and these are also being carefully reviewed.
"We have multiple lines of inquiries ongoing and we are continuing to receive excellent support from local people."
Officers are also distributing leaflets with details about how to contact them with any information relating to the murder.
Anyone who was in Tremadog or Porthmadog between 2100 BST on Friday, April 9 and 0800 BST on Saturday, April 10 is asked to contact the police incident room on 01745 538474 or to contact officers on 101.This article is from the BBC News website. ? British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.