Flash floods caused by heavy monsoon rains have killed at least 549 people in Pakistan over the past month, with remote communities in the impoverished southwestern province of Balochistan among the worst hit, a government agency said.

Government agencies and the army have set up aid and relief camps in flood-hit regions, and are working to help relocate families and provide food and medicine. The flooding has also damaged more than 46,200 houses, the National Disaster Management Authority (NDMA) said on Friday.

The past month was the wettest in three decades, with 133 percent more rain than the average for the past 30 years, the NDMA said. Balochistan, which borders Iran and Afghanistan, received 305 percent more rain than the annual average, the disaster agency said.