The letter that claimed to speak for "loyal party members" called for President Xi Jinping to step down. The incident is the latest chapter in a heated debate about the limits of free speech in China.
The three were detained in raids on Sunday. Belgian police are still trying to identify a third suspect from the airport bombing and have released a 32-second video of CCTV footage over YouTube.
After a suicide bombing ripped through a crowded park on Easter, Pakistan has declared a three-day mourning period. Meanwhile, authorities are trying to track down those responsible for the attack.
Pakistan's security forces have been waging an offensive against the Taliban since 2014 and have diminished the radical Islamist group. Sunday's bombing showed the country remains vulnerable.
The Molenbeek district of Brussels is the home to many of the terrorists behind last year's attacks in Paris and last week's Brussels bombing. We find out why it's fertile ground for radical Islam.
The men, held on charges of participating in terror activities, were detained on Sunday after a series of searches across Belgium following last Tuesday's bombings at the airport and a subway.
Morning Edition has spoken often to Saeed al-Batal, a Syrian photographer and filmmaker, who is from the besieged town of Douma. Renee Montagne talks to him about what he's doing these days.
Hundreds more were injured in the blast that struck a public park in Lahore, eastern Pakistan. Reuters reports that the casualties included many women and children.
Hundreds of people turned out for what was supposed to be a peaceful rally in Brussels for bombing victims. It turned violent when right-wing protesters stormed in to disrupt the gathering.