A newspaper has received a letter from a writer identified only as "the Lord's avenger" claiming responsibility for a pipe-bomb explosion that injured two radical environmentalists in Oakland.

The letter includes specific details about the construction and placement of the bomb that injured Earth First! leaders Judi Bari and Darryl Cherney, The Press Democrat reported Thursday. The bomb blew up in Bari's car May 24.Police have accused Bari and Cherney of knowingly carrying the bomb. They have denied it.

The writer also claimed responsibility for a bomb that went off outside a lumber mill in Cloverdale on May 9, the newspaper said.

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