Reuters reports: Iran has obtained data from a U.S. intelligence drone that shows it was spying on the country’s military sites and oil terminals, Iranian media reported its armed forces as saying on Wednesday.

Iran announced on Tuesday that it had captured a ScanEagle drone belonging to the United States, but Washington said there was no evidence to support the assertion.

The incident has underscored tensions in the Gulf as Iran and the United States draw attention to their military capabilities in the vital oil exporting region in a standoff over Iran’s disputed nuclear program.

“We have fully extracted the drone’s information,” Iran’s Islamic Revolutionary Guard Corps (IRGC) said in a statement on Wednesday, according to Iran’s English-language Press TV.