(CNN) Some think Rep. Alexandria Ocasio-Cortez went too far when she compared the detention of immigrants at the border to being put in "concentration camps" earlier this week.

But actor and activist George Takei, who was sent to a Japanese-American internment camp during World War II with his family, backed up the New York Democrat's characterization.

"I know what concentration camps are," Takei wrote on Twitter this Tuesday. "I was inside two of them, in America. And yes, we are operating such camps again."

I know what concentration camps are. I was inside two of them, in America. And yes, we are operating such camps again. — George Takei (@GeorgeTakei) June 19, 2019

This is not the first time Takei has spoken out against the Trump administration's immigration policies.

When news of the President's "zero-tolerance" policy -- which separated thousands of children from their parents -- first broke last year, Takei called the border situation "worse" than the circumstances in which he was placed in a Japanese-American internment camp in the 1940s.

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