Emergency responders completed a fourth morning of searching today without any sign of the five missing aviators from an Army UH-60 Black Hawk helicopter that went down off of Kaena Point.

By this afternoon, the responders were expected to have completed 75 separate sorties and covered more than 61,000 square miles, the Coast Guard said in a statement.

Small debris continued to be recovered along the shore off Kaena Point. On Friday, no debris was found at sea.

The sea search today reached as far as 160 miles offshore from Kaena Point, having been expanded because of currents and swells in the area. Search planes and the cutter Galveston Island were scouring the leading edge southwest of Kauai. Helicopters and the cutter Walnut were scanning the area about 35 miles offshore of Kaena Point.

Shoreline crews from the Honolulu Fire Department, Army, and Coast Guard were searching along the north shore from Kaena Point to Dillingham, while the Kauai Fire Department was assisting along Kauai’s southern shore.

The search began Tuesday night after Army personnel lost contact with a UH-60 Black Hawk aircrew conducting night training off Oahu.

A safety zone restricting access to authorized vessels or people remains in effect for an area extending five nautical miles out from a point about two miles northwest of Kaena Point. Kaena State Park trails remain closed today. A command center has been set up at Haleiwa Boat Harbor.

Debris from the crash should be considered hazardous and reported to the 25th Combat Infantry Brigade staff duty officer at 808-656-1080.

Besides the assets already mentioned, other units assisting in the search today were an HC-130 Hercules airplane crew, an MH-65 Dolphin helicopter crew, a Navy P-3 Orion aircrew, an MH-60 Seahawk helicopter crew, two 45-foot Response-Boat Medium crews, two UH-60 Black Hawk helicopter crews, a CH-47 Chinook helicopter crew, Honolulu lifeguards, and a crew from the Department of Land and Natural Resources.