Iran International shifts operations from London office to Washington after police inform them of danger; British government summons top Iranian diplomat over matter

Tehran has stepped up harassment of independent news organization in wake of widespread protests; channel says it can no longer protect its staff in London

Planned Baghdad negotiations not yet scheduled as Iran accuses its regional rival of fomenting anti-regime demonstrations at home

Concrete barriers erected outside Iran International's London office, which has been covering protests in Islamic Republic; spokesperson says staff are 'more anxious' than panicked

Information led to police alerting two reporters from regime-critical Iran International network that they were in danger, foiling plot, says Kan broadcaster

'Agent' of Iran International network is suspected of slandering Islamic Republic, causing riots and spreading terror, according to semi-official news agency