Taliban fighters seize district in east Afghanistan
* Taliban fly flag in remote Afghan district
* Police say they staged "tactical retreat"
* Taliban "shadow governor" killed in air raid
(Adds details, background, quotes)
By Rohullah Anwari
KUNAR, Afghanistan, May 29 (Reuters) - Taliban insurgents overran a remote district in eastern Afghanistan after days of heavy fighting in the area, a provincial police official said on Saturday.
The insurgents hoisted their flag in the district centre, which they also seized briefly last year, after forcing police to retreat, Afghan provincial officials and the Taliban said.
The battle started earlier this week in the Barg-i-Matal district of mountainous Nuristan province, a remote area bordering Pakistan, when hundreds of Taliban fighters stormed the area administrative headquarters, said Qasim Payman, police chief of the province.
"The police force in the area has tactically retreated from the district after days of fighting," he told Reuters, adding there were no signs of reinforcements despite repeated requests.