The sensors from a suspected Chinese spy balloon changeable down aft crossing the US person been recovered from the Atlantic Ocean, the US subject says.
Search crews recovered "significant debris from the site, including each of the precedence sensor and electronics pieces identified", said US Northern Command.
The FBI is examining the items, which the US says were utilized to spy connected delicate subject sites.
The US has changeable down 3 much objects since the archetypal 1 connected 4 February.
"Large sections of the structure" were besides recovered connected Monday disconnected the seashore of South Carolina, subject officials say.
About 30-40ft (9-12m) of the balloon's antenna array are among the items found, according to CBS, the BBC's US partner.
US officials said the high-altitude balloon originated successful China and was utilized for surveillance, but China said it was simply a weather-monitoring airship that had blown astray.
Since that archetypal incident, American combatant jets person changeable down 3 much high-altitude objects successful arsenic galore days - implicit Alaska, Canada's Yukon territory, and Lake Huron connected the US-Canada border.
In the Lake Huron strike, the archetypal Sidewinder rocket fired by the US F-22 warplane missed its people and exploded successful an chartless location, US media reported, citing subject sources. The 2nd rocket deed the target, according to reports.
Each Sidewinder rocket costs implicit $400,000 (£330,000).
Officials person said the slow-moving unidentified objects, each of which person been smaller than the archetypal balloon, whitethorn beryllium hard for subject pilots to target.
White House spokesperson John Kirby said connected Monday the 3 different objects were changeable down "out of an abundance of caution".
They did not airs "any nonstop menace to radical connected the ground", but were destroyed "to support our security, our interests and formation safety", helium said.
The balloon changeable down implicit South Carolina was described by officials arsenic the size of 3 buses.
The 2nd object, implicit Alaska, was described by officials arsenic the size of a "small car". The 3rd object, implicit the Yukon, was "cylindrical". And the fourth, implicit Michigan, was said to beryllium "octagonal" with strings attached.
The betterment of the balloon changeable down connected 4 February was delayed amid foul weather.
Efforts are nether mode to cod debris from wherever the different objects were blown retired of the sky.
Canada's national constabulary unit said connected Monday that the hunt country successful the Yukon Territory was astir 3,000 sq km (1,870 sq miles), including "rugged upland terrain with a precise precocious level of snowpack".
Royal Canadian Mounted Police spokesperson Sean McGillis said determination was a anticipation the fragments from the Yukon and Lake Huron incidents mightiness ne'er beryllium recovered due to the fact that of their distant locations.
Canadian Armed Forces Major-General Paul Prévost said each 3 of the astir caller objects to beryllium changeable down appeared to beryllium "lighter than air" machines, and described the Lake Huron entity arsenic "a suspected balloon".
The subject main added that immoderate members of the nationalist who discovered debris should interaction the constabulary directly.
Secretary of State Antony Blinken is considering gathering China's astir elder diplomat, Wang Yi, aboriginal this week astatine a information league successful Munich, Germany, sources acquainted with the negotiations told US media connected Monday.
Amid the enactment implicit high-altitude aircrafts, America's apical diplomat cancelled a sojourn to Beijing that was initially planned for past week.