Investors weathered a geopolitical whirlwind on Tuesday — with a declaration of martial law by South Korea’s president sparking flows into haven assets, sinking the country’s currency and raising concerns about political unrest in a country that’s a key U.

In the uncertain hours early Wednesday, many recalled the nation’s last martial law, which came after a coup installed a military dictator and triggered a deadly uprising.

Six South Korean opposition parties later submitted a bill to parliament to impeach President Yoon Suk Yeol, with voting set for Friday or Saturday.