The Greek stock market had its biggest plunge since 1987 Tuesday as concerns mounted that the country is heading for a political crisis that could jeopardize its financial rescue program.

Hour after hour, the coast guard boats shuttled from the crippled freighter to a concrete pier, discharging a steady flow of humanity: Families with small children, black-clad elderly women, battered-looking youths with backpacks.

A prosecutor heading a yearlong investigation into Greece’s extreme right Golden Dawn party recommended Thursday that its leader, 17 other lawmakers, and dozens of party officials and supporters stand trial on a range of charges, including running a criminal organization and murder.