Tokyo Electric Power Co Holdings said on Thursday it has been hit with another lawsuit filed in a U.S. court seeking $5 billion for compensation over the 2011 Fukushima nuclear disaster, the second filed against the utility in a U.S. court. The suit filed by 157 individuals is seeking that amount to set up a compensation fund for the costs of medical tests and treatment they say they need after efforts to support the recovery from the world's worst nuclear disaster since Chernobyl in 1986. The utility, known as Tepco, is being sued regarding improper design, construction and maintenance. Tepco has been hit with more lawsuits than in any previous Japanese contamination suit over the meltdowns of three reactors at its Fukushima Daiichi plant north of Tokyo [in] 2011. Radiation forced 160,000 people from their homes, many never to return, and destroyed businesses, fisheries and agriculture. In June, a federal appeals court cleared the way for a group of U.S. military personnel to file a suit against Tepco over radiation exposure that they say occurred during recovery efforts on board the USS Ronald Reagan. Shareholders of Tepco are suing the utility's executives for a record 5.5 trillion yen ($67.4 billion) in compensation. The company's former chairman and other executives of the company appeared in court in June to answer charges of professional negligence, in the first criminal case after the meltdowns. The criminal and civil legal cases do not threaten financial ruin for Tepco, which is backstopped by Japanese taxpayers.