"I would like to thank the public for their ongoing support and the way in which they responded to our appeal.
I appreciate that there is significant disruption whilst experts search and check this area. These road closures are essential to ensure that we keep everyone safe.
Investigations like this are complex and we need to ensure that we obtain every piece of information or forensic evidence possible. This could take some time. What I can say is that we will endeavour to return the local area to normal as quickly as possible."
More top news
Part of the northbound carriageway will be shut on Thursday 1 June.
Ramadan is the month in which Muslims refrain from eating and drinking during the daylight hours. This year it runs from May 26 to June 24.
A young offenders institute would be converted into a category three prison.