Indonesia suspended cooperation with the Australian military in December for "technical reasons," a spokesman for the Indonesian defence forces said on Wednesday, after offensive material was seen at an Australian training base.

The suspension is the latest in a string of spats between the sometimes uneasy Asia-Pacific neighbors, who have important military ties ranging from counterterrorism cooperation to border protection.

"All forms of cooperation have been suspended," Indonesian military spokesman Maj. Gen. Wuryanto said. He said a broad range of activities would be affected.