Pope Francis's attempt to wrest himself from the grasp of an ardent follower this week have left some asking -- where was the pontiff's security detail?

Often dubbed the "People's Pope," Francis's ability to engage with crowds -- and his apparent relish in doing so -- puts him in close proximity with the throngs who gather to greet him.

Whether taking selfies with the faithful, shaking hands, or blessing children, the head of 1.3 billion Catholics around the world is protected by bodyguards from a special corps charged with the pope's security.

A frame grab taken from a handout video made available by Vatican Media on January 1, 2020 shows a lady (L) grabbing at Pope Francis's hands as he greets Catholic faithful as he arrives to celebrate New Year's Eve mass in Vatican City
A frame grab taken from a handout video made available by Vatican Media on January 1, 2020 shows a lady (L) grabbing at Pope Francis's hands as he greets Catholic faithful as he arrives to celebrate New Year's Eve mass in Vatican City VATICAN MEDIA / Handout

But on New Year's Eve in Saint Peter's Square, televised images showed a woman behind a barricade grabbing Francis's hand, while three men in black can be seen in the background.

The Pope swats at the woman's hand to free himself, before one of the men is seen restraining her hands. Francis later apologised for setting a "bad example."

By Thursday, after the images circulated online, some people took to Twitter to question how the incident could have happened.

"The guy has a literal army to protect him and has to do his own slapping?" asked one Twitter user.

Pope Francis apologises before the traditional Angelus prayer for having "lost patience" the previous evening with a woman who shook his hand too hard during his walk around St Peter's Square.
Pope Francis apologises before the traditional Angelus prayer for having "lost patience" the previous evening with a woman who shook his hand too hard during his walk around St Peter's Square. VACTV /

Another commented: "The Pope has a very lax security detail."

The Vatican's security department declined to comment.

One security expert however said bodyguards should have intervened earlier.

This combination of pictures created on January 1 of frame grabs taken from a handout video made available by Vatican Media shows from top left to bottom right, a lady (L) with her hands clasped as she watches Pope Francis greeting Catholic faithful as he
This combination of pictures created on January 1 of frame grabs taken from a handout video made available by Vatican Media shows from top left to bottom right, a lady (L) with her hands clasped as she watches Pope Francis greeting Catholic faithful as he arrives to celebrate New Year's Eve mass in Vatican City, the same lady (L) grabbing at Pope Francis's hands followed by Pope Francis slapping his way free from her clutches and Pope Francis turning around after freeing himself VATICAN MEDIA / Handout

"It's the Pope's security team who should be apologising," said the founder of Italy's elite special police interventions unit, whose identity is protected but who goes by the name Commandant Alfa.

"The lady wouldn't let go of the Pope's hand, and he was forced to slap her hand a little bit in order to get out of the way," Alfa told the AGI news agency. "But it shouldn't have gotten to that point."

The pope's chief bodyguard and head of Vatican security, Domenico Giani, resigned in October after an internal security memo related to a Vatican financial probe was leaked to the press.

Papal security became a top priority at the Vatican after the 1981 assassination attempt of pope Jean Paul II by Mehmet Ali Agca, a Turk, in Saint Peter's Square. Heightened security measures that followed included making the Popemobile bulletproof and the addition of metal detectors on entering the square.

But even overly enthusiastic fans have posed security risks. In 2009, before a Christmas Eve Mass given by then pope Benedict XVI, a woman who later said she wanted to give the pontiff a hug jumped over a barricade and grabbed his robes, pulling the 82-year-old to the ground. Benedict was not injured but a French cardinal broke his leg in the melee.

When Francis became pope in 2013, his low-key style and desire to bring the Roman Catholic Church closer to the people posed new headaches for the Vatican's elaborate security team, whose colourful Swiss Guards are the most visible members.

"You have to respect the personal style of each pope," said Francis's spokesman at the time, Federico Lombardi.

"It's not for the heads of security to decide these things."