24 April 2012
Last updated at 12:38
Sudan's President Omar al-Bashir has ruled out talks with South Sudan on the simmering border conflict that has prompted fears of all-out war.
Ghulam Mustafa throws roses in the air to dry them before they go to a local market on the outskirts of Lahore, Pakistan.
Researchers band a peregrine falcon chick on the 33rd floor of a Pacific Gas and Electric building in San Francisco. The peregrine falcon is a protected species in California, and though numbers dwindled to two nesting pairs in 1970, conservation efforts have brought the numbers up to some 250 nesting pairs in the state.
A former army soldier sits in the rain as he guards the entrance to Taghyeer (Change) Square in Sanaa, where protesters seeking regime change in Yemen have been camping for more than a year.
Refugees who fled post-2011 election violence in the Ivory Coast were told by President Alassane Ouattara that he was "revolted" by the crimes committed. He said he was particularly moved to be visiting Duekoue given the "major clashes, and the killings that took place here".
PC Alberta leader Alison Redford heads back to her hotel after she won the provincial election in Calgary, Alberta. Redford and the PC party defeated the Wildrose party to continue their 40-year legacy of holding power in Alberta.
Guests check out a Buick concept model on display at the Auto China 2012 exhibition in Beijing.
Cast member John Cusack poses with a raven named Suge at the premiere of The Raven at the Los Angeles theatre in Los Angeles, California
Thousands of Armenians take part in a procession to a hilltop memorial above the capital to mark the 97th anniversary of the massacre of hundreds of thousands of ethnic Armenians at the hands of government troops in the Ottoman Empire.
Lech Walesa (left), former President of Poland, reaches across FW de Klerk, former President of South Africa, to shake the hand of Mikhail Gorbachev, former President of the USSR, during a panel discussion at the World Summit of Nobel Peace Laureates in Chicago.