Credit Suisse investors in Asia are considering filing lawsuits that could help them recoup some of their losses.

At least 80 Credit Suisse investors in Singapore are in talks to sue the Swiss government over its decision to write down $17 billion of Credit Suisse Additional Tier-1 bonds on the grounds that it violated the Singapore-European Free Trade Association agreement signed between the city-state and Switzerland in 2003, according to the Financial Times.