(NBCNEWS) — It didn’t take long. Within hours of announcing the start of its annual spring offensive, the Taliban in Afghanistan claimed responsibility for an early-morning attack in the eastern part of the country that killed at least three police officers.

“In addition to suicide bombings, insurgents warned of coordinating ‘insider’ attacks against ‘foreign transgressors’,” the Taliban said in a statement on Sunday.

The Taliban, known for employing bombastic language in describing its achievements–claims frequently invalidated or unproven–hailed the 2013 spring offensive as “monumental.”

Note: Read our discussion guidelines before commenting.