U.S. intelligence reports show that Iran is quickly repairing underground missile bunkers and silos that were hit by U.S. and Israeli strikes, within just a few hours.

The reports also say that Iran’s Revolutionary Guard still has a large number of missiles, including cruise missiles, ballistic missiles, and mobile launchers.

The New York Times reported overnight Friday into Saturday, citing intelligence reports obtained by the newspaper, that Iran is rapidly repairing missile bunkers struck by the United States and Israel. According to the report, Iranian forces are restoring launch shafts and underground bunkers to operational use within hours of being hit.

The intelligence assessments also indicate that the Islamic Republic has retained a significant number of missiles and mobile launchers.

The Times report noted that the Pentagon and the White House said this week they had made significant progress against Iran. A Pentagon briefing said US forces have struck 11,000 targets in Iran since the war began. However, US intelligence agencies are said to be questioning how close Washington is to eliminating Iran’s missile capabilities, a key objective defined by President Donald Trump’s administration.