Prime Minister Benjamin Netanyahu told CNN in an interview on Tuesday that Israel has acted against Iranian threats but would not go into details.

Netanyahu told interviewer Jake Tapper that Israel has been “taking action against certain weapons development” in Iran. However, he refused to confirm or deny whether Israel was behind drone attacks at a military plant in Isfahan over the weekend.

“I never talk about specific operations… and every time some explosion takes place in the Middle East, Israel is blamed or given responsibility – sometimes we are sometimes we’re not,” he said.