In Pics: What happened across the world on Oct 21

Bomb explodes in Karbala

Civilians gather at the scene of a car bomb explosion, killing and wounding tens of people, in a commercial area in the southern Shiite holy city of Karbala, 50 miles (80 kilometers) south of Baghdad, Iraq.

US continues airstrike in Kobani, Syria

Thick smoke from an airstrike by the US-led coalition rises in Kobani, Syria, as seen from a hilltop on the outskirts of Suruc, at the Turkey-Syria border.

Obama casts his vote in Chicago

President Barack Obama arrives to cast a ballot at the Dr. Martin Luther King Community Service Center in Chicago while participating in early voting. Obama took a break from campaigning for Gov. Pat Quinn, D-Ill., to cast an early ballot for the 2014 midterm election.

Oscar De La Renta dies at the age of 82

File photo of Oscar de la Renta as he attends the Cinema Society premiere of "The Skin I Live In" in New York. The designer, De la Renta, is favorite of socialites and movie stars alike.

Rafel Nadal in action

Spain's Rafael Nadal returns a ball to Italy's Simone Bolelli during their first round match in the Swiss Indoor tennis tournament at the St. Jakobshalle in Basel, Switzerland.