Following pressure from the opposition, Ma took steps to publicly apologize for his government's failure to respond swiftly with rescue and recovery efforts. Ma cancelled 2009's Double Ten Day national celebrations and his state visit to the Solomon Islands for the Third Taiwan-South Pacific summit. A probe was launched to investigate why government response was slow and inadequate, and vice foreign minister Andrew Hsia tendered his resignation to Ma's premier, Liu Chao-shiuan. Defense minister Chen Chao-min also resigned before Liu himself stepped down.