Pakistani authorities are defending their response to flash floods that killed more than 200 people in a single northwestern district this week.

In Pakistan, a helicopter carrying relief supplies to the flood-hit northwestern Bajaur region crashed due to bad weather, killing all five people on board, including two pilots, a government statement said.

The country has endured heavier rain during monsoon seasons, which scientists have attributed to climate change. The authorities said that at least 194 people died on Friday.