LISBON, Portugal (AP) — Investigators in Portugal say they have recovered all the weapons stolen in June from the country's national armory.

The military police say in a statement they seized the military equipment about 15 kilometers (10 miles) south of the armory.

The statement issued Wednesday gave few details. The Defense Ministry never made public what items were taken from the armory at Tancos Air Base, 100 kilometers (60 miles) north of Lisbon, but Portuguese media said it included hand grenades.

Portugal's judicial secrecy law forbids the release of information about open investigations.

Police said the weapons are being inspected at an army arsenal and that investigation into the theft is ongoing.

Defense Minister Jose Azeredo later said the armory's electronic surveillance system was obsolete.