16 People Died And Dozens Of Others Were Injured.
Manchester Attack: Thames Valley Reacts
The UK's terror threat level's been raised to the highest possible. Here's what it means for the Thames Valley.
A Heathrow spokesperson said: "The safety and security of our passengers and colleagues is our top priority.
"We are working closely with the Met Police and Border Force colleagues to support the change in the threat level.
“The airport will continue to operate alongside additional checks and higher visibility police patrols.”
A spokesman for Thames Valley Police said: "We are reviewing our security measures and activities, including those for pre-planned events."
"There remains no intelligence to suggest a specific threat to our communities within the Thames Valley area.
"We will continue to provide a visible policing presence across the Force area to provide reassurance to our communities."
Hampshire Police say: "We have reviewed, and will continue to review, our security plans and capability, including around all pre-planned events taking place in Hampshire and the Isle of Wight in the coming weeks.
"It is normal procedure for us to work with event organisers in the run up to all large scale events to ensure they can run these safely and securely."
Last night - vigils were held in towns and cities across the UK - including at Oxford's Carfax Tower.
Meanwhile, It's come out the photo of an Oxfordshire murder victim appeared on a fake list of people missing following the attack.
17 year-old Jayden Parkinson was killed by her boyfriend from Reading four years ago.
Elsewhere, Rugby fans heading to the London Irish match at Reading's Madejski stadium later are being told to get there in good time to allow for security checks.
The club's released this statement:
"Our thoughts are with everyone affected by the terrorist attack in Manchester last night.
"There will be a minute's silence before the kick-off of tonight's Greene King IPA Championship Play-off Final between London Irish and Yorkshire Carnegie at the Madejski Stadium.
"The team at the Madejski Stadium work closely with the National Counter Terrorism Security Office (NaCTSO) and security and safety arrangements will be in place including bag checks on arrival.
"Supporters are asked to only bring a bag to the match if really necessary and to leave extra time to enter the stadium."
And Reading FC fans going to Monday's play-off final at Wembley on Monday are being told to be vigilant.
The English Football League says: "The safety of fans remains our highest priority.
"The EFL takes security issues extremely seriously and we would urge all supporters planning to be at Wembley Stadium to be vigilant of their surroundings at all times, stay alert and not be alarmed."
The Organisers of Common People Oxford this weekend say they're happy with safety arrangements ahead of this weekend's festival.
They've released the following statement:
"We want to reassure everyone that the safety of our audience is of paramount importance to Common People.
"Today the team have been in discussions with Thames Valley Police to review the security strategy for this weekend’s show.
"The events have been planned with the current threat level considered and we have total confidence that a proportionate and realistic level of resource and procedures are already in place.
"The police are satisfied with our current strategy, and we will continue to communicate over the course of the weekend.
"Our thoughts are with the families in Manchester affected by this tragedy.
Several public figures in the Thames Valley have been tweeting their reaction.
Reading FC manager Jaap Stam - who used to play for Manchester United - says he hopes people in the city can pick up their lives and still enjoy it.
Oxford City Councillor Tom Hayes used to work at the Manchester Arena and said he's keeping everything crossed for (his) hometown.
The Mayor of Basingstoke and Deane, Paul Frankum, tweeted: "My thoughts and prayers are with all the people affected by events in Manchester Arena last night #WeStandTogether".
A severely disabled man is taking his legal battle over cuts to his care package to the Court of Appeal.
Inspectors say they're worried about the safety of inmates at Aylesbury's Youth Offenders Institution
An Oxford economist's calling for more places to be made available in elderly care homes.
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