This is the 6596th most frequent Korean word.
외신에
"Foreign news" or "to foreign press."
In this sentence, '외신에' means 'to the foreign press', denoting the medium receiving the explanation.
그는 외신에 최근 사태에 대해 자세히 설명했습니다.
He detailed the recent incident to the foreign press.
Here, '외신에' translates to 'according to the foreign press', showing the source of the information.
외신에 따르면, 이번 사건은 빠르게 국제적인 관심을 얻었다고 합니다.
According to the foreign press, this incident quickly gained international attention.
In this context, '외신에' indicates the intended audience for the announcement—'to the foreign press'.