Thieves raided Paris's Louvre museum in broad daylight Sunday, taking just seven minutes to grab some of France's priceless crown jewels, but dropping a gem-encrusted crown as they fled, officials and sources said.

The spectacular heist, one of several to target French museums in recent months, forced the closure of the Louvre, the world's most-visited museum and home to the Mona Lisa.

President Emmanuel Macron posted on social media that "everything is being done" to catch the perpetrators and recover the stolen treasures.