Two men have been arrested on suspicion of the murder of a taxi driver who was shot dead in an "execution-style" killing 20 years ago.
Ethsham Ghafoor, 26, was found dead in his taxi in the car park of a nursery in Gedling, Nottingham in November 1994.
The suspects, aged 42 and 43, will be held for the rest of the day.
A building at Nottingham University, which was set to be a world-leading research centre, will be rebuilt after it was destroyed by fire.
The £20 million chemistry lab was due to open next year but was completely destroyed by the blaze while still under construction.
The cause of the fire is still under investigation.
Firefighters are working to dampening the still smouldering fire at Nottingham University, after a blaze at a chemistry building ignited yesterday evening. The cause of the incident is not known.
Incident Commander Joanne Wooler-Ward, speaking at the scene last night, said the building was empty when the fire took place, and no one was injured.
These images show what was described as a land mark chemistry building that was destroyed by a fire last night.
The university's website describes the lab as being carbon neutral, built with natural materials, powered by renewable energy and incorporating "state-of-the-art teaching and research laboratories".
It is billed to be a "centre for excellence", with the building work backed by a £12 million grant from pharmaceutical giant GSK.
Firefighters battling a 'major' blaze at the University of Nottingham have managed to contain the fire but they are still working to put it out completely, according to an incident commander at the scene.
In a video posted on the Nottinghamshire Fire and Rescue Service's Facebook page, Group Manager Joanne Wooler-Ward said: "We're on a firefighting operation, so to extinguish the fire and manage any other risks."
She added that they are not in a position to say what started the fire but police and specialist fire investigation officers would be examining the site as soon as possible.
She said: "There is a lot of damage to the building.... It was a fully developed fire and just credit to those that really did pull out all the stops to prevent this fire spreading to other areas."
Pictures of the battle to control a 'major fire' at Nottingham University have been published by the Nottinghamshire Fire and Rescue Service on their Facebook page.
A building that caught fire at Nottingham University has collapsed, according to a station manager at Nottinghamshire Fire and Rescue Service.
Firefighters are currently on site dealing with a major fire at our GSK sustainable chemistry building on Jubilee Campus.
Thankfully, there have been no casualties as this is a building that was still under construction. Our number one priority is to ensure that the fire does not spread to other buildings in the vicinity and we are grateful to the fire teams on site who have worked extremely hard to contain the blaze.
Tomorrow we are due to welcome prospective students and their families to Nottingham for our Open Day and we would like to stress that this is still going ahead as planned.
Around 60 firefighters have been called out to the "significant" blaze at Nottingham University, according to a spokesman from Nottinghamshire Fire and Rescue.
They said: "We are dealing with a significant incident..... The building is part of the University of Nottingham campus."
They added that there have been no reports of injuries and the cause of the blaze is unknown as yet.
An eyewitness has described the scene at the University of Nottingham where around 50 firefighters are currently tackling a major blaze.
Sarah Armes says the fire is 'massive'.