Kenya ? Young men from rival ethnic groups hunted each other through the streets of a western Kenyan town Saturday, burning houses and blocking roads a day after the country’s political foes agreed to try to end weeks of violence.

Western Kenya has been at the center of fighting that has engulfed the country since an election that foreign and local observers say was rigged – and Saturday’s clashes underscored how difficult it may be to end the bloodletting, which has left hundreds dead.

Both men who signed Friday’s deal were still talking tough. President Mwai Kibaki accused his opponents of orchestrating the violence, and Raila Odinga, the opposition leader who says the presidency was stolen from him, said Kibaki’s “aggressive statements” were undermining efforts to quell the fighting.