The US has announced it will send 18 more helicopters to Pakistan as part of its expanding contribution to flood-relief efforts in that country. The aircraft, which include 10 CH-47 Chinook and eight UH-60 Black Hawk helicopters, are expected to begin flood-relief efforts in Pakistan in mid-September. The unit will operate in partnership with the Pakistani military throughout flood-affected areas, the Pentagon said. This is the latest in a series of deployments in response to Pakistan's urgent request for flood-relief assistance. So far, 15 military helicopters and three C-130 aircraft are supporting flood-relief efforts in Pakistan. They have transported more than GBP 2 million of humanitarian assistance supplies and rescued over 7,000 people, delivering much-needed aid and providing transport to those who urgently need assistance. The US has so far provided USD 150 million to support immediate relief efforts and has allocated an additional USD 50 million to assist in re-establishment of communities impacted by the floods. The floods have killed over 1,700 people and affected 20 million in Pakistan.