Manama: A court in Kuwait has turned down a request to release three Kuwaitis suspected of links with the Daesh terror group.

The three suspects who had been arrested in separate cases appeared before the court on Wednesday in the capital Kuwait City as their trial began.

The first suspect used his account on the Twitter microblog to invite people to join the terror organisation and incite people for the toppling of the regime in Kuwait. The suspect also derided Shiites and called for using violence against them in an attempt to sow division alongside sectarian lines, Kuwaiti daily Al Watan reported on Thursday.

The second suspect, a teacher, faced charges of disparaging Shiites in Kuwait on his Twitter account and using social media to solicit people to join Daesh.

The third suspect, a municipality employee, was charged with participating in antagonistic acts against Syria and Iraq by supporting Daesh and by raising funds from people to give to the group.

A fourth suspect arrested by the police was later allowed to go home after he denied knowledge that his donations were going to the Daesh group.

Kuwait had warned of a zero-tolerance policy towards people who targeted sects or caused or fuelled divisions within the country.

It has also warned it would not tolerate any form of support to terror groups.

The north Arabian Gulf country suffered its worst terror attack on June 26 when a Daesh supporter blew himself up inside a Shiite mosque killing 26 worshippers and wounding 227.

The trial of the 29 suspects in the case started on Tuesday. The main suspect Abdul Rahman Sabah Eidan Saud, who provided the explosives belt for the bomber, said he pledged allegiance to Daesh only one day before the attack.

He said that the belt weighed around 40kg and that it had two detonators, adding that Fahad, the Saudi national who flew into Kuwait to blow himself up at the mosque, wore a large thobe to cover it and avoid drawing attention to himself. Kuwaiti daily Al Rai reported.

Fahad also shaved off his long beard as a precautionary measure to avoid looking suspiciously different from the other worshippers.