An armed man, claiming to have links with a political party, entered the protest area at Shaheen Bagh on Tuesday and threatened the anti-Citizenship Amendment Act agitators there, according to eyewitnesses.
A video clip of the alleged incident which is doing the rounds on social media shows a gun-wielding man being overpowered by the protesters.
According to Syed Taseer Ahmed, one of the protestors and a local, the man, who claimed to have links with a political party, climbed up the stage around 3 pm and threatened people to end the agitation.
He was, however, overpowered by other protestors and taken away from the site.
Police said they will identify the person and will call him for an interrogation.
"We will ask him about the source of the weapon. If needed, appropriate actions will be taken after the interrogation," a senior police officer said.
WATCH: Armed man threatens Shaheen Bagh protesters to end agitation
The protest against the Citizenship Amendment Act at Shaheen Bagh, primarily led by women, has been witnessing supporters flocking in thousands everyday.
However, it has also been criticised for blocking the road and causing inconvenience to motorists and schoolchildren.
Shaheen Bagh Official, a Twitter handle which posts updates from the protest site, wrote at 6 pm, "An official and urgent appeal from Shaheen Bagh: armed anti-social elements have entered the protest area. We fear that more right-wing groups could enter and launch an attack. We appeal to all to join the protest, strengthen our numbers and prevent any violence."
At 6.21pm, it tweeted an update.
"Infiltrators have been caught and neutralised, and the situation is back to normal. However, we are on alert for more such incidents today and in the coming days as we reach elections in Delhi. Please reach Shaheen Bagh and sites across Delhi in large numbers".
