NEW : United States urges calm from both sides . The protests began Wednesday and continued Thursday . They are demanding government action on issues including food shortages . The president tells protesters he is ready for action , but urges a halt to violence .
NEW : United States urges restraint from both sides . The protests began Wednesday and continued Thursday . Malawians are demanding government action on issues including fuel shortages . The president tells protesters he is ready for talks , but urges a halt to violence .