Terror in the UK: Timeline of attacks

Three people were killed and another three seriously injured after a lone man attacked people in a Reading park as they enjoyed the summer sunshine.

A 25-year-old man was arrested at the scene on suspicion of murder.

A man was shot dead by police and two people stabbed in Streatham, south London, in what Scotland Yard described as a terror attack.

The current terror threat in the UK is substantial - the third-highest level - meaning "an attack is likely".

Convicted terrorist Usman Khan embarked on a deadly rampage armed with two knives and wearing a fake suicide vest after attending a prisoner rehabilitation programme while out on licence halfway through a 16-year jail sentence.

Saskia Jones and Jack Merritt were both killed and Khan, who was subdued by members of the public using a narwhal tusk and fire extinguisher, was shot dead by police.

Police arrested a man on suspicion of terror offences after three people were stabbed at the Arndale shopping centre.

The suspect, in his 40s, was carrying a "large knife" when witnesses said he started lunging and attacking people.

The suspect was arrested on suspicion of commission, preparation and instigation of an act of terrorism.

Three people were injured when a car crashed into security barriers outside parliament.

Salih Khater was later convicted of two charges of attempted murder after he ploughed his Ford Fiesta into a pedestrian and a group of cyclists who had stopped at a red light.

He then smashed into a security barrier as two uniformed police officers dived out of the way.

An improvised explosive device was detonated on a packed Tube train during the morning rush hour, injuring 22 people.

Passengers reported seeing a "fireball" and a "wall of flame", with those hurt "covered in blood".

Ahmed Hassan, 18, was jailed for life for the attack.

One man died and several other people were injured when Islamophobic extremist Darren Osborne drove a hire van at a crowd leaving Ramadan prayers in Finsbury Park, north London.

He was handed a life sentence, with a minimum 43 years, for killing 51-year-old Makram Ali and injuring 12 others.

Sentencing Osborne, the judge said: "This was a terrorist attack. You intended to kill."

Three terrorists drove a van into pedestrians on London Bridge before running into Borough Market.

Rachid Redouane, Khuram Butt and Youssef Zaghba, all wearing fake explosive vests, started chasing and stabbing people and tried to barricade themselves inside bars and restaurants.

Eight people were killed, with armed police shooting the three attackers dead just eight minutes after the first 999 calls.

Twenty-two people were killed when suicide bomber Salman Abedi detonated a homemade device packed with shrapnel in the lobby of Manchester Arena at the end of an Ariana Grande concert.

More than 200 people were injured in the deadliest terror attack on British soil since the 7/7 bombings 12 years before.

The youngest victim, Saffie Roussos, was eight years old.

Khalid Masood, 52, began his attack by driving a grey Hyundai across Westminster Bridge, hitting pedestrians.

He crashed the car into railings outside parliament and entered the grounds of the Palace of Westminster, where he fatally stabbed police officer Keith Palmer.

Masood also killed teacher Aysha Frade, US tourist Kurt Cochran, retired window cleaner Leslie Rhodes, and Romanian tourist Andreea Cristea before being shot dead by police.

Labour MP Jo Cox was murdered by a far-right terrorist a week before the 2016 EU referendum.

White supremacist Thomas Mair attacked the mother-of-two as she arrived for her weekly surgery at Birstall Library, shooting and stabbing her after shouting "Britain first".

Mair, who had a stash of neo-Nazi material at his home in the West Yorkshire town, was told by a judge that he had killed the 41-year-old "to advance the cause of violent white nationalism" and was given a whole-life sentence, meaning he will die in jail.

Fusilier Lee Rigby, 25, was mowed down by a car and hacked to death by Michael Adebolajo and Michael Adebowale near the Woolwich Barracks in southeast London.

His attackers have never showed remorse for the killing and claimed they were "soldiers of Allah", motivated by the plight of Muslims abroad to carry out their crime.

Adebolajo was given a whole-life jail term and Adebowale was sentenced to life with a minimum of 45 years.

Fifty-two people were killed and hundreds more were injured in explosions on three Underground trains and a bus, the day after London had been awarded the 2012 Olympic Games.

Shezhad Tanweer detonated his device at Aldgate, Mohammed Sidique Khan at Edgware Road, and Germaine Lindsay between King's Cross and Russell Square - all within three minutes of 8.50am.

Habib Hussain detonated his bomb on board the number 30 bus at Tavistock Square at 9.47am.