The Delhi Police has questioned two more people in connection with the Parliament security breach case, sources said on Thursday.
While one of them is said to be a close friend of accused Manoranjan D and belongs to Karnataka, the other hails from Uttar Pradesh, police sources said.
A team of the Special Cell questioned the duo on Wednesday, they added.
They are suspected to be a part of the now-deleted Facebook page 'Bhagat Singh Fan Club', which was created by the accused before the security breach incident, said sources.
In a major security breach on the anniversary of the 2001 Parliament terror attack last Wednesday, two men -- Sagar Sharma and Manoranjan D -- jumped into the Lok Sabha chamber from the public gallery during Zero Hour, released coloured smoke and shouted slogans, before being overpowered by the MPs.
Two others -- Neelam and Amold Shinde -- were detained outside the Parliament complex for staging a protest.
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The four were arrested and charged under the stringent Unlawful Activities (Prevention) Act.
They will be produced before a court as their seven days of police custody ends on Thursday. The Special Cell is likely to seek their further custody.
Meanwhile, two more people -- Lalit Jha and Mahesh Kumawat -- were arrested later in connection with the case and they have also been interrogated, police said.