Two of the four Americans kidnapped by gunmen in Mexico last week are dead, and the other two were found alive, Mexican officials announced on Tuesday.

Officials in Mexico’s Tamaulipas state shared the discovery on social media, noting that investigations and efforts to capture those responsible are ongoing. One of the victims found alive is reportedly injured, though the nature of the injuries were not immediately clear.

“We send our condolences to the relatives of the victims, their friends, to the people of the U.S., to the government of the U.S.,” Mexican President Andrés Manuel López Obrador said in a press conference, according to The Wall Street Journal. “Of course we lament what happens in our country, and especially this,” he added.

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