YANGON (Reuters) - Four explosions rocked Myanmar's capital, Naypyitaw, and two other towns on Friday, residents said, adding several people were wounded but no one had been killed. There was no immediate claim of responsibility or response from the authorities. Myanmar's government usually blames bombings on ethnic minority rebels. The first three blasts went off within minutes of each other in three different places. The first suspected bomb exploded in a jeep in Mandalay, the country's second-biggest city after the former capital, Yangon, at about 12:10 p.m. (0540 GMT).