The governors of Hiroshima and Nagasaki prefectures sent letters of protest May 26 over the latest subcritical nuclear test in the United States.

Hiroshima's Hidehiko Yuzaki addressed his letter to President Donald Trump, who is now visiting Japan. He urged Trump to visit Hiroshima, which was leveled by atomic bombing in 1945, to fully “understand the reality of total destruction caused by a nuclear weapon.”

The United States conducted a subcritical nuclear test in Nevada on Feb. 13, according to a May 24 announcement by the U.S. Lawrence Livermore National Laboratory.

Yuzaki called the test “extremely regrettable.”

He said, “It destroys the hopes of Hiroshima residents who strongly wish the abolition of nuclear weapons.”

Trump arrived in Japan as state guest on May 25. He will wind up his visit on May 28.

Nagasaki Governor Hodo Nakamura, along with prefectural assembly chairman Mitsuyuki Segawa, also denounced the subcritical nuclear test.

They sent protest letters to U.S. Ambassador William Hagerty on May 26.