Last week, Iraq's federal Court banned the secession of any part of the country.
An Iraqi army helicopter crashed during a routine flight on Sunday, killing all seven people on board, a military statement and Iraqi air force officers said.
Relations between Hamas and Iran have strained in recent years over the Syrian conflict.
Riyadh vows to take 'escalatory measures' against Lebanon unless 'status quo' is swiftly restored.
Speaking in Doha with Qatari counterpart, Iraqi FM voices concern over Saudi Arabia's bellicose relationship with Iran.