His release comes after journalist Mousa al-Omar dropped a complaint over online criticism.

British Syrian activist Hassan Akkad has been released from a prison in Damascus after four days detention for alleged criticism of public figures.

Akkad was taken into custody from a cafe in the al-Maliki neighbourhood of Damascus on Wednesday at about 9:45pm local time (18:45 GMT), a statement by his organisation said on Friday.

Akkad is the founder of the “Give Us the Money That You Owe!” campaign, which tracks large financial commitments made by public figures during a donation drive to fund Syria’s reconstruction.

His detention followed a legal complaint filed by Syrian journalist and presenter Mousa al-Omar in relation to “Hassan’s social media activities and public comments” after Akkad criticised al-Omar for allegedly failing to deliver on his financial pledges during the donations campaign.

Public Prosecutor Judge Hossam Khattab confirmed last week that Akkad had been detained due to warrants issued against him for failing to present himself to the Cybercrime Control Division in relation to al-Omar’s complaint. Khattab also said other plaintiffs had filed cases against Akkad for slander and defamation.

The activist’s release on Sunday came after al-Omar told Al Jazeera that he had instructed his lawyer to withdraw the complaint against Akkad, and said that everything pledged to the campaign had been paid.

On Sunday, al-Omar again posted on X that he had withdrawn the complaint against Akkad.

“My legal representative dropped the right and the lawsuit against my brother Hassan this morning and pardoned him for the sake of Almighty God … I was saddened by what he brought upon himself, and I wish him success in his social media activities and I will always be a supporter of him,” he wrote in Arabic.

Akkad, who is also a filmmaker, was imprisoned twice by President Bashar al-Assad’s regime for documenting anti-government protests in 2011.

After fleeing Syria, he stayed in the Middle East before making an 87-day journey across Europe to reach the UK in September 2015.

Video of his gruelling trip was included in the documentary series, Exodus: Our Journey to Europe, which went on to win a British Academy of Film and Television Arts (BAFTA) Award.