Ahmad Khan Rahami, a naturalised US citizen born in Afghanistan, is a suspect in New York and New Jersey blasts
After a manhunt, Mr Rahami was arrested in New Jersey following a shoot-out with police
At least 29 people were injured in an explosion in the Chelsea district of New York City on Saturday night
Backpack containing up to five devices exploded in Elizabeth, New Jersey
Republican Donald Trump blames the immigration system and is accused of demagoguery by Hillary Clinton
Image source, AFP/Getty ImagesAssociated Press is reporting that two police officers were shot during the operation to arrest Ahmad Khan Rahami in Linden, New Jersey - there's been no formal confirmation of any injuries so far.
The Minnesota attacker and New York bomb suspect Ahmad Khan Rahami were both naturalised US citizens - we'll take a look later about what's meant by that word 'naturalised'.
Ahmad Khan Rahami was born in Afghanistan before becoming a US citizen, while Dahir A Adan was of ethnic Somali origin, and was born in Kenya, before being granted US citizenship.
The fact both men were born outside the US has again brought the issue of immigration to the forefront of the election race.
In an interview with Fox News on Monday, Republican contender Donald Trump - who has made repeated calls for stronger vetting of immigrants to the US - said: "This is only going to get worse...you have to stop them coming into the country."
The news channel WABC in New York City has just broadcast images of the suspect, Ahmad Khan Rahami, in custody - he was shown conscious on a stretcher being led into an ambulance.
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If you're just joining us, here is a rundown of what happened over the past few days:
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Speaking in New York ahead of the United Nations General Assembly, President Obama has said there does not appear to be any link between the blasts in New York and New Jersey and the attack on nine people in a shopping mall in Minnesota on Saturday.
Nine people were hurt in the stabbing in St Cloud, after which the attacker - named by his father as Kenyan-born ethnic Somali Dahir A Adan - was shot dead.
Various US media outlets are now reporting that Ahmad Khan Rahami, the suspect behind Saturday's blast in Manhattan, has now been arrested. We'll bring you more as we get it.
Image source, AFP/Getty Images
The news conference is now over. There were no major revelations but New York Mayor Bill de Blasio said he wanted to reassure the public, ask them to be vigilant and update them on progress in the investigation.
He said it was important to be clear about what the authorities knew and what they did not yet know.
"We're going to be very careful and patient to get to the full truth here. We are not going to jump to conclusions. We are not going to offer you easy answers. We're going to make sure we have all the facts. We know there was a bombing. That much we do know. We know it's a very serious incident.
"But we have a lot more work to do to be able to say what kind of motivation was behind this. Was it a political motivation? A personal motivation? What was it? We do not know that yet. That work must go on."
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Police Commissioner O'Neill said: "We're satisfied we are where we need to be. I know we're going to find out who did this and they're going to be brought to justice."
Mayor de Blasio repeats that the bombing was intentional but the motivation of the bomber, as well as their identity and any possible links to an organisation, remains unknown.
"We will keep the public informed every step of the way, as we get real evidence," he said.
Giving further details of security procedures, New York police officer Carlos Gomez said: "Commuters will be greeted by more officers. We'll be doing enhanced bag checks. There will be more canines.
"Heavy weapons teams will also be assigned to our transport hubs."
New York Police Commissioner James O'Neill said police had recovered video footage of both crime scenes. He said "numerous" phone calls from the public were being vetted by detectives.
Mr O'Neill said: "Residents can rest assured we're going to get to the bottom of this.
"We're going to do our best to protect them. Right now we don't have enough information to make a conclusion."
Mr de Blasio said investigation work was continuing into who had planted the bomb and why. He said there would be regular updates.
He said his message to New Yorkers was: "Be vigilant. The police need your help."
He said there would be a "bigger than ever" police presence in New York this week, going into the General Assembly meetings at the United Nations.
Mayor Bill de Blasio is speaking at a news conference. He said police, fire and emergency services had launched an "extraordinary response" and people "are getting back to business as usual".
"The attitude that people took was one of gratitude towards our first-responders."
Governor Cuomo: "I want New Yorkers to be confident... that New York is up and running"
New York Governor Andrew Cuomo also said all those taken to hospital after the blast had now been released.
Most had suffered only minor injuries, having been hit by flying glass or debris. Police had listed one of the injuries as serious.
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When addressing reporters near the site of the explosion, Mr Cuomo says: "A bomb exploding in New York is obviously an act of terrorism."
Andrew Cuomo also says getting informed of such an incident was "one of the nightmare scenarios" that he has to face as governor of New York.
"We were fortunate that there were no fatalities," he adds, but says there was a significant amount of damage to property.
There were 29 people injured in the blast.
Governor Andrew Cuomo tells the media that "we've found no ISIS connection" to the explosion in New York, referring to the so-called Islamic State.
There has not been any credit taken for the incident from international terror groups, he adds.
