KANDAHAR, Afghanistan — A civilian cargo plane carrying supplies for NATO troops in the southern Afghan province of Helmand crashed this week, killing seven crew members, officials said on Thursday.

Separately, in the southern province of Zabul, an attack by two Taliban infiltrators left at least eight policemen dead, officials said.

The plane, which crashed on Wednesday, was run by the Azerbaijani company Silk Way Airlines. The news media in Azerbaijan, citing government officials, said that seven crew members, all Central Asians or Eastern Europeans, were killed and that two survivors were taken to a hospital in Kandahar Province.

“Yesterday, a cargo plane from Azerbaijan was trying to land at Dwyer Base at Garmsir district,” where foreign troops are based, said Taimoor Shah, the police chief of Garmsir. “On the runway, the plane crashed and was in flames. We saw the thick black smoke rising.”