Pakistani flood-affected villagers travel with their belongings and livestock as they evacuate Sajawal town in Sindh province.
In an interview with The Associated Press, Azam Tariq, a spokesman for the Pakistani Taliban, suggested militants may attack humanitarian workers in flood-ravaged country.
He "claimed Thursday that the United States and other countries were not really focused on providing aid to flood victims but had other 'intentions' he did not specify," the AP reports. "Tariq strongly hinted that the militants could resort to violence."
He said: "When we say something is unacceptable to us one can draw his own conclusion."
According to NPR's Michele Kelemen, aid workers are taking the threat very seriously.
Mike Young, who works for the International Rescue Committee (IRC), says he has heard similar threats from the Taliban before:
We will be making sure that we are moving carefully. We talked to the local power holders on the ground. We reach out and are inclusive in our dialog, so we can really map that terrain and know where the sharpest dangers lie.
He says it helps that the IRC has a long history in Pakistan.