Argentina's vice-president has narrowly avoided assassination after a gunman's weapon jammed as he aimed at her.

Cristina Fernández de Kirchner was greeting supporters outside her home when a man emerged from the crowd and pointed a handgun in her face.

President Alberto Fernández said the gun was loaded with five bullets but failed to fire when triggered.

Ms Fernández de Kirchner is involved in a corruption trial and was returning from court. She denies the charges.

Police said the gunman, who local media identified as a 35-year-old Brazilian man, has been taken into custody. They are attempting to establish a motive for the attack.

Addressing the nation late on Thursday night, President Fernández said: "Cristina remains alive because, for a reason not yet technically confirmed, the gun, which contained five bullets, did not fire."

He went on to condemn the attacker and said the attempt on Ms Fernández de Kirchner's life was one of the "most serious" incidents since the country returned to democracy in 1983.

"We can disagree, we can have deep disagreements, but hate speech cannot take place because it breeds violence and there is no chance of violence coexisting with democracy," President Fernández said.

He also declared a national holiday on Friday to allow Argentines time to "express themselves in defence of life, democracy and in solidarity with our vice president".

Footage shared on local media showed the man aiming a gun inches away from her head and appearing to attempt a shot. She then lowers her head but no shots were fired.

El video del arma contra @CFKArgentina pic.twitter.com/8j1xpMnPoe

— Lautaro Maislin (@LautaroMaislin) September 2, 2022

In another video posted on social media, people in the crowd appear to try to block Ms Fernández de Kirchner from the suspected gunman.

Argentina's economy minister, Sergio Massa, called the attempted shooting an "attempted assassination".

"When hate and violence prevail over debate, societies are destroyed and situations like these arise: attempted assassination," he said in a tweet.

A police spokesperson earlier told Reuters news agency that a weapon was found a few metres from the scene after the man had been arrested.

In recent days, hundreds of protesters have gathered in support outside the 69-year-old's home in the capital while the trial is underway.

Ms Fernández de Kirchner is accused of defrauding the state and of fraudulently awarding public works contracts in her stronghold in Patagonia while she was president between 2007 and 2015.

If convicted at trial, prosecutors have asked that the ex-president face 12 years in prison and a lifetime ban from politics.

However, Ms Fernández de Kirchner is the Senate president and so enjoys parliamentary immunity. She would not be imprisoned unless her sentence was ratified by the country's Supreme Court, or she loses her Senate seat at the next elections at the end of 2023.

Ms Fernández de Kirchner has faced numerous other corruption trials following her time as president. The verdict of this trial is expected to take some months.