VIENNA (AP) -- Diplomats say spy satellite images of an Iranian military facility show trucks and earth-moving vehicles at the site that indicate crews were trying to clean it of radioactive traces.
Two of the diplomats told The Associated Press that those traces could have come from what they said was the testing of a small neutron trigger used to set off a nuclear explosion. A third diplomat could not confirm that, but says any testing of a so-called neutron initiator at the site could only be in the context of trying to develop nuclear arms.
All asked for anonymity Wednesday for discussing sensitive information.
Iran faces growing international pressure over its nuclear program, which it insists is peaceful. Israel has hinted that it might resort to a pre-emptive military strike to stop Tehran's program.
(Copyright 2012 by The Associated Press. All Rights Reserved.)