On the next day, the KMT filed several lawsuits in major cities and Lien led 20,000 supporters in a march to the presidential office and staged an all night sit-in. This first set of lawsuits where thrown out because they were filed before a winner had been officially declared. Sit-ins were held in front of courthouses across Taiwan, with some protests becoming violent. The High Court ordered all ballot boxes be sealed, per Lien's demand. Protesters continued to camp on Ketagalan Boulevard outside the presidential office, despite Taipei Mayor Ma Ying-jeou's calls on Sunday night to have people return to work. On Monday morning, hundreds still remained, with numbers swelling to about 10,000 in the evening. The crowds still remained until one week later, demanding a recount and an international investigation into the apparent assassination attempt.