Parisians are putting flowers in the bullet holes left from attacks

The people of Paris continued to mourn on Sunday, two days after a coordinated series of attacks killed at least 129 people.

Parisians went to many of the sites where so many had died, including the Bataclan theater, where attackers gunned down dozens of hostages, and the restaurants which other attackers targeted. Some left roses in the bullet holes left by the assault.

Paris is in the midst of a three-day period of national mourning. The investigation into the attacks continues. Below, see some of the images of a city still in shock.