His exact location is still unknown.

Cuban punk musician Gorki Águila has been arrested in Havana, according to multiple reports. The Porno Para Ricardo frontman, 46, was reportedly taken against his will by two police officers on Wednesday (Aug. 5), and his exact location is still unknown.

Cubanet.org reports that the musician was in his Havana residence and was speaking with the site’s writer Camilo Ernesto Olivera Peidro over the phone when two police officers detained him around noon local time on Wednesday.

Águila’s teenage daughter, Gabriela, confirmed the arrest to Cuban news site, 14ymedio.com, on Wednesday, saying, “Yesterday at noon they [government agents] brought him a citation, which he received but didn’t want to sign because it didn’t say the reason for having to go in.”

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Openly anti-Castro, Águila has been arrested twice before, most recently in May, after he stood in front of the Museum of Fine Arts in Havana with artwork from graffiti artist El Sexto, which contained the word Libertad (freedom). According to 14ymedio.com, the punk rocker also recently participated in one of the Damas de Blanco (Women in White) marches, which regularly advocate for the release of political prisoners. After the most recent march on Aug. 2, more than 50 activists were arrested.

On Aug. 14, Secretary of State John Kerry is set to visit the island to raise the American flag over the U.S. embassy in Havana, marking the first secretary of state visit to the island since 1945. The move comes after the U.S. and Cuba formally restored diplomatic relations on July 20.