The Navy has fired two of its top commanders in the Pacific region following recent deadly collisions this summer.
On Monday, Vice Adm. Phil Sawyer, commander of U.S. 7th Fleet, fired the commander of Task Force 70 (CTF 70), Rear Adm. Charles Williams and the commander of Destroyer Squadron (DESRON) 15, Capt. Jeffrey Bennett.
a " loss of confidence in their ability to command" as the reason for both of their departures. Navy cited
Last month, Vice Adm. Joseph Aucoin, who previously led 7th Fleet,
. was relieved of duty
Ten U.S. sailors died and five were injured last month when the
in Southeast Asia. In June, seven sailors were killed when the USS John S. McCain and an oil tanker collided near Japan. USS Fitzgerald and a container ship collided
Navy fires 2 commanders in connection with ship collisions
In this July 11, 2017 photo provided by U.S. Navy Office of Information, the Valiant-class yard tugboat Menominee (YT 807) assists the Arleigh Burke-class guided-missile destroyer USS Fitzgerald (DDG 62) as it moves to Dry Dock 4 at Fleet Activities (FLEACT) Yokosuka, Japan, to continue repairs and assess damage sustained from its June 17 collision with a merchant vessel. Poor seamanship and flaws in keeping watch contributed to a collision between the Navy destroyer and a commercial container ship that killed seven sailors, Navy officials said, announcing that the warship captain will be relieved of command and more than a dozen other sailors will be punished. Adm. William Moran, the vice chief of naval operations, told reporters Thursday, Aug. 17, 2017, that the top three leaders aboard the USS Fitzgerald, which was badly damaged in the collision off the coast of Japan, will be removed from duty aboard the ship. (Mass Communication Specialist 1st Class Peter Burghart/U.S. Navy photo via AP)
MC1 Peter Burghart/AP
In this Tuesday, July 11, 2017 photo, released by the U.S. Navy, the USS Fitzgerald sits in dry dock in Yokosuka, Japan, to continue repairs and assess damage sustained from a June 17 collision with a cargo ship ran in the waters off of Japan. Seven sailors died in the collision. (Spc. 1st Class Leonard Adams/U.S. Navy via AP)
Spc. 1st Class Leonard Adams/AP
Darrold Martin, right, is comforted by Janice Chance with the Maryland Gold Star Mothers, during the burial service for his son, Navy Petty Officer 1st Class Xavier Alec Martin, 24, of Halethorpe, Md., Wednesday, Aug. 9, 2017, at Arlington National Cemetery in Arlington, Va. Flags in Maryland are flying at half-staff for the sailor who died in June when the USS Fitzgerald, a U.S. Navy destroyer, collided with a container ship off the coast of Japan. (AP Photo/Jacquelyn Martin)
This combination of undated photos released Monday, June 19, 2017, by the U.S. Navy shows the seven U.S. sailors who died in a collision between the USS Fitzgerald and a container ship off Japan on Saturday, June 17, 2017. From top left to right, Personnel Specialist 1st Class Xavier Alec Martin, 24, from Halethorpe, Md.; Yeoman 3rd Class Shingo Alexander Douglass, 25, from San Diego, Calif.; Gunner's Mate Seaman Dakota Kyle Rigsby, 19, from Palmyra, Va.; and Fire Controlman 2nd Class Carlos Victor Ganzon Sibayan, 23, from Chula Vista, Calif. From bottom left to right, Sonar Technician 3rd Class Ngoc T Truong Huynh, 25, from Oakville, Conn.; Gunner's Mate 2nd Class Noe Hernandez, 26, from Weslaco, Texas; and Fire Controlman 1st Class Gary Leo Rehm Jr., 37, from Elyria, Ohio. (U.S. Navy via AP)
Damaged part of USS Fitzgerald is seen at the U.S. Naval base in Yokosuka, southwest of Tokyo Sunday, June 18, 2017. Navy divers found a number of sailors' bodies Sunday aboard the stricken USS Fitzgerald that collided with a container ship in the busy sea off Japan, but a spokeswoman said not all seven missing had been accounted for. (AP Photo/Eugene Hoshiko)
FILE - In this Aug. 22, 2017 file photo, the damaged port aft hull of USS John S. McCain, left, is seen while docked next to USS America at Singapore's Changi naval base in Singapore. The collision between the USS John S. McCain and an oil tanker highlighted a long-simmering dispute between Singapore and Malaysia over which country should control a 60-meter (197-foot) wide guano-encrusted outcropping at the edge of the South China Sea. (AP Photo/Wong Maye-E, File)
The USS John S. McCain is seen docked at Changi naval base after its accident on Monday, Aug. 21, 2017 in Singapore. The USS John S. McCain was docked at Singapore's naval base with "significant damage" to its hull (blocked by berth) after an early morning collision with the oil tanker Alnic MC as vessels from several nations searched Monday for missing U.S. sailors. (AP Photo/Wong Maye-E)
Monday's announcement comes just a day before the top U.S. Navy officer and the Navy secretary are scheduled to head to Capitol Hill for a hearing on the crashes.
Rear Adm. Marc Dalton is now commander Task Force 70, and Capt. Jonathan Duffy, who was deputy commander of the destroyer squadron, took over as commander.
The Associated Press contributed to this report.