A Cairo criminal court has adjourned the trial of ousted president Mohamed Morsi and 35 others on espionage charges to 14 October.

Morsi was absent during Monday's court session for security reasons.

The court is awaiting further reports concerning the case, and is expected to hear from more witnesses, including police officials, in the upcoming session.

Morsi, along with other leading figures of the Muslim Brotherhood, including its Supreme Guide Mohamed Badie, is accused of collaborating with foreign organisations – namely Gaza rulers Hamas, an ideological offshoot of the Brotherhood – to commit acts of terrorism in Egypt.

Morsi is also under investigation on separate charges of espionage. On 6 September, prosecutors referred Morsi and nine others to trial on charges of spying for Qatar – a backer of his government during his brief one-year rule.

The defendants are accused of leaking important national security documents to Qatari intelligence through the Doha-based Al Jazeera news channel.

Morsi, who was deposed in July 2013 amid mass protests against his rule, faces a number of other charges in separate cases, including incitement to murder and breaking out of prison in 2011.