Iran has filed a formal complaint after recovering a downed U.S. drone near its border with Afghanistan last week. The United States has acknowledged the drone was used as part of a CIA spy program that has sent many drones into Iran to purportedly monitor suspected nuclear sites. On Thursday, the Iranian foreign ministry summoned the Swedish embassy, which handles U.S. interests in Tehran, and said the Obama administration has increased what it called “provocative and covert actions.” Iran is demanding the United States provide “a full response and compensation.” At a White House news conference in Washington, President Obama reiterated the longstanding U.S. threat that no option is off the table when dealing with Iran.

Reporter: “Are you intentionally trying to ramp up the pressure on Iran? And given that you had stated that no options are off the table, should we take that to mean that you are considering some other options?”

President Obama: “No options off the table means I’m considering all options.”

Reporter: “Can you tell us exactly what those options might be?”

President Obama: “No.”