With the exception of the A4076 exit/access, the Merlins Bridge roundabout in Haverfordwest has now re-opened to cars and vans following the collision between a mobile crane and a fuel tanker earlier today.
However, large vehicles which are asked to use the Cleddau Bridge diversion route.
The A4076 from Johnston to Haverfordwest is likely to remain closed for the remainder of the day.
A clean-up operation is underway in Haverfordwest after a fuel tanker ruptured following a collision with a crane this morning.
Dyfed-Powys Police say nobody was hurt in the incident, but that a 'substantial amount' of fuel leaked from the tanker.
Specialist equipment is being used to remove the fuel spillage and the road is going to be closed for a protracted period of time, up to 24 hours.
Johnston Road, Old Hakin Road, Freemans Way and Pembroke road are closed, and diversions are in place.
Based on the information currently available, we regard the potential impact on public health as minimal. We will continue to work with partner agencies to assess the situation if new information becomes available.
The A4076 is closed in both directions because of an accident between Dredgman Hill / Magdalen Street / Caradog's Well Road (Merlins Bridge Roundabout) and Freemens Way / Cambrian Place (Salutation Square).
A Welsh play about Bradley Manning, the American soldier who passed military secrets to WikiLeaks, has won an award for drama.
'The Radicalisation of Bradley Manning', produced by National Theatre Wales, has been given the first James Tait Black Prize for Drama.
Manning spent four years at school in Haverfordwest.
It was written by Tim Price, and charts his radicalisation from those teenage years in Wales to the present day.
Manning was convicted of espionage charges by a US military court last week, but acquitted of the most serious charge against him - aiding the enemy.
The £10,000 award is the first of a new drama category in Britain's oldest literary awards. It was launched last year by the University of Edinburgh.
Tim Price said: "I am thrilled to be recognised by such a prestigious award, and honoured to be chosen as winner from such a fantastic shortlist of plays - that it is the first time a category for drama has been added to the James Tait Black Prizes is even more exciting."
The play is currently being performed at Edinburgh Festival Fringe.
A verdict of accidental death has been recorded for a Pembrokeshire man who went missing after going to a Six Nations match at the Millennium Stadium, and was found in the River Ely in Cardiff more than a month later.
Ben Thompson, who was 34 and from Haverfordwest, was last seen in Cardiff city centre on the evening of Saturday 2 February.
The inquest heard he then tried to walk back to his hotel, after a day of drinking, but fell into the river.
His body was found on Tuesday 12 March, after an enormous search involving friends and family.
Ben Thompson's wife has paid tribute to her 'kind and loving' husband.
Police have confirmed the body found in the River Ely on Tuesday was that of the missing rugby fan.
Losing Ben has left us all devastated but finding him on Tuesday has answered many unanswered questions and given us the chance to say our goodbyes.
Somehow we must now move on with our lives and ask to be allowed to grieve in peace for such a kind and loving man.
We wish to thank Ben’s friends and colleagues for their support and South Wales Police for their efforts in searching for Ben.
South Wales Police have confirmed that the body found in the River Ely on Tuesday is that of 34-year-old Ben Thompson from Haverforwest.
The identity of the body was confirmed today, and police say there are no suspicious circumstances.
Ben Thompson was reported missing on February 2nd, after he'd been to the Wales v Ireland Six Nations game at the Millennium Stadium.
A search operation involving up to 50 officers, including detectives and specialist search teams, spent many hours searching the Leckwith area of Cardiff where he was last seen.
Chief Inspector Eddie Ough, from South Wales Police, said: “At times like this the people of Cardiff really come together and South Wales Police would like to thank local residents, businesses and the media for their co-operation during our investigation.
“We wanted to find Ben alive and well but sadly that was not to be. We hope now at least that his friends and family have an element of closure and can be allowed to grieve in peace.”
South Wales Police have confirmed that a body found in the River Ely on Tuesday is that of missing Ben Thompson from Haverfordwest.
Police have cordoned off an area on the Ely Trail, next to Penarth Rd, in Cardiff, where a body has been found.
South Wales Police says a body has been found in the River Ely, near Penarth Road in Cardiff.
Formal identification has not yet taken place.
The family of 34-year-old Ben Thompson from Haverfordwest, who has been missing for more than a month after watching Wales play in the Six Nations, has been informed and are being kept updated by family liaison officers.