Anti-terror police were on high alert on Saturday as mass burials took place for the victims of the suicide attack.

About 150 people were wounded and some remained in critical condition after the bombing Friday in the southwestern city of Quetta, police official Mohammed Sultan said.

The attack was the second in a week against Shiites for which the Pakistani Taleban claimed responsibility. A triple suicide bombing Wednesday night killed 35 people at a Shiite ceremony in the eastern city of Lahore.

"Our war is against American and Pakistani security forces, but Shiites are also our target because they, too, are our enemies," Pakistani Taleban commander Qari Hussain Mehsud said.

He said he was proud the US had added the Pakistani Taleban to its international terrorism blacklist on Wednesday, and he threatened attacks in the US and Europe in coming days that would resemble a recent attempted car bombing in Times Square.

"We will in coming days strike inside America and Europe," he said. "We will prove that we have ability to strike right in their countries." Shiite leaders blamed the government for failing to protect them and called a general strike in Quetta, where all schools were closed for a day of mourning.

Interior Minister Rehman Malik said the Taleban, Al-Qaeda and the outlawed Lashkar-e-Jhangvi militant group were working together to destabilize Pakistan.

"They are infidels," he told reporters in Islamabad.

Pakistan's civilian government is struggling to deal with massive flooding and the incessant militant violence aimed at overthrowing the Western-backed administration.

White House Press Secretary Robert Gibbs said the timing of the recent attacks — during the holy month of Ramadan and as Pakistan recovers from the flooding — made them “even more reprehensible.” The UN humanitarian affairs office reported new flooding around the town of Dadu near the Indus River in Sindh province, about 330 km from the Arabian Sea.

Flood-related health problems continued to increase despite receding waters in many parts of the country. The World Health Organization reported a spike in suspected malaria cases in Sindh and Balochistan provinces, while diarrhea and acute respiratory diseases such as pneumonia continue to plague the disaster zone. More than 4.5 million people have received medical help since the flooding began in late July.

Between 600,000 and 800,000 people have been displaced over the past four days and three towns were under water.

About 150,000 people were waiting on a road for assistance, according to what the UN described as rough estimates from staff and local officials in the area.

At least 3.5 million people in Sindh and 6.5 million nationwide had already been displaced — including people who briefly left their homes and those who lost their houses entirely — the UN said.