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Hungary’s Academy of Science said samples of the sludge entering the Danube indicate the concentration of heavy metal in it does “not come close” to levels considered dangerous to the environment. But it said the sludge itself is still dangerous because of its caustic quality.

IRAN

Gunmen kill 4 police in Iran’s Kurdish area

TEHRAN | A pair of gunmen opened fire on a police patrol in Iran’s Kurdish region Thursday, killing four officers and a bystander, an Iranian news agency reported.

The attack occurred in Sanandaj, the capital of Iran’s Kurdistan province about 310 miles west of Tehran, where authorities have been battling a separatist Kurdish movement for years.

The two gunmen were members of “counterrevolutionary groups,” Ebrahim Kazeminejad, the provincial deputy police chief told the semiofficial Mehr news agency. Five other policemen and four civilians were wounded in the attack, one of them seriously.

ZIMBABWE

Premier rips Mugabe over ‘betrayal’

HARARE | Zimbabwean Prime Minister Morgan Tsvangirai Thursday voiced his “disgust” with President Robert Mugabe’s unilateral decision-making in their power-sharing government, calling it a “betrayal.”

Mr. Tsvangirai said that events over the past few months have left him “disappointed in Mr. Mugabe, and his betrayal of the confidence that I and many Zimbabweans have personally invested in him.”

The prime minister condemned Mr. Mugabe for autocratically appointing officials to the government that the two longtime rivals formed in February 2009 in the aftermath of violent and disputed elections.

Mr. Tsvangirai said his party, the Movement for Democratic Change (MDC), has resolved not to recognize the appointment of the reserve bank governor, the attorney general, five judges appointed in May, six ambassadors named in July and the police service commission.

From wire dispatches and staff reports