RIYADH: Twitter on Thursday said it has expunged more than a hundred accounts that tried to interfere with the public debate between US President Donald Trump and his Democratic challenger Joe Biden on Tuesday night.

"Based on intel provided by the @FBI, last night we removed approximately 130 accounts that appeared to originate in Iran. They were attempting to disrupt the public conversation during the first 2020 US Presidential Debate," the American social networking service said in a statement.

"We identified these accounts quickly, removed them from Twitter, and shared full details with our peers, as standard. They had very low engagement and did not make an impact on the public conversation. Our capacity and speed continue to grow, and we'll remain vigilant," it said.

"As standard, the accounts and their content will be published in full once our investigation is complete. We’re providing this notice to keep people updated in real time about our actions. We wish to thank the @FBI for their assistance," Twitter said.

Iran and China are suspected of trying to interfere in the forthcoming US election to help Biden win, while Russia is said to have continued supporting Trump.

Weighing in, Twitter users took sides, with some slamming Iran and others blaming the social networking site for favoring the US president.

"Those activities against the American people were directed by (Iranian supreme leader) Ali Khamenei who has multiple accounts on Twitter. Perhaps Khamenei shouldn't have Twitter accounts to promote his malicious activities," tweeted Sam Kermani. @CTGR8

"Iran must be a lot worse then China, Russia, lots of other country's and even a ton of organizations in the United States with not getting caught doing that sort of stuff," added @mike10dude.

Alfredo Montanez (@Deadpool650) said Twitter should also "remove Trump's tweets when he posts fake information about voting information and Covid19 instead of just putting a label on it."

"Thank you. Would you mind banning the account of our biggest threat to democracy, Donald Trump?" chimed in Helen Armstrong (@HelenArmstrong5).