Apart from collusion with foreign forces, Lai is also charged with conspiracy to collude with foreign force and conspiracy to obstruct the course of justice of assisting fugitive Andy Li Yu-hin in an attempt to flee to Taiwan.

He had been pressed with the additional charges in his second mention of the collusion case at the West Kowloon Magistrates' Courts today. His case is adjourned to June 15.

Lai is scheduled for one more court mention on Friday, in the ongoing trial where he is charged with fraud with a case related to the lease of the building which houses Apple Daily.

He is also expected to be sentenced today after he and nine other pro-democracy activists were found guilty of participating in unauthorized assemblies during anti-government protests in 2019.

It would be the first time that Lai, one of Hong Kong's most prominent democratic activists, who has been in jail since December after being denied bail in a separate national security trial, to receive a sentence.

Lai was found guilty in two separate trials earlier in April for illegal assemblies on Aug. 18 and Aug. 31 2019, respectively. The maximum possible punishment is five years in prison.