The Australian government says it will investigate how thousands of sheep died on a live export ship last year.
About 2,400 animals succumbed to heat stress while travelling from Perth to three nations in the Middle East in August, according to the government, according to a BBC report.
47shocked and deeply disturbed48
On Friday, Canberra threatened to block an upcoming shipment if welfare requirements were not met.
The deaths in August comprised 3.76 percent of the 63,800 sheep on board the ship, almost twice the percentage that requires formal investigation, the government said.
It said the animals had endured extreme heat on the voyage to Qatar, Kuwait and United Arab Emirates.
76properly and sustainably77
84This is the livelihoods of Australian farmers that are on that ship
92so we can nail those who do the wrong thing.93
Animal rights groups in Australia have previously called for the suspension of live exports due to welfare concerns.
In 2011, Australia suspended its live trade to Indonesia for six months after a TV documentary showed graphic footage of animals being mistreated.
Littleproud did not give details about the footage, which had been provided by Animals Australia.
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