BAGHDAD, Dec 2 (Reuters) - The leader of Iraq's largest Sunni Arab political bloc left his house on Sunday in the company of a top government official after three days' confinement at home, the military said.

Adnan al-Dulaimi's confinement had raised fears of an increase in sectarian tension and his followers, the largest Sunni Arab bloc in parliament, walked out in protest on Saturday. Dulaimi himself said he was under house arrest.

Baghdad security spokesman Qassim Moussawi said Dulaimi had left his house in the company of National Security Adviser Mowaffaq al-Rubaie, heading for a hotel in the fortified "Green Zone" government and diplomatic compound.

Dulaimi was confined to his home -- the government said for his own safety -- after his son and dozens of members of his entourage were arrested, accused of links to a car bomb.

"He has the option to stay at the al-Rasheed Hotel or go back to his house," Moussawi said.

A member of Dulaimi's family who declined to be identified, reached by telephone at the house, confirmed that Dulaimi and his daughter, also a parliament member, had set off with Rubaie. (Reporting by Alaa Shahine; writing by Peter Graff; editing by Tim Pearce)

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