Envoy Says Syria Cease-fire Firm for April 12

U.N.-Arab League envoy Kofi Annan, center, is welcomed by Syrian refugee children upon his arrival at Yayladagi refugee camp in Hatay province, Turkey, April 10, 2012. (AP Photo/Umit Bektas, Pool)

In this image made from amateur video released by the Syrian Media Council and accessed April 10, 2012, smoke rises following purported shelling in Homs, Syria. Syrian troops shelled and raided opposition strongholds across Syria activists said, denying c

In this photo taken April 9, 2012, Syrian refugees are seen at a camp in Reyhanli, Turkey. Turkey's prime minister accused Syria of infringing its border and said Tuesday that his country is considering what steps to take in response, including measures "

In this photo taken April 9, 2012, Syrian refugees are seen at a camp in Reyhanli, Turkey. (AP Photo/Germano Assad)

Syrian activists prepare signs for upcoming protests at a house in Damascus, April 3, 2012. (AP)

A Syrian man wounded by the government troops gets treated in Damascus. (AP)

Syrians wave revolutionary flags at a night protest against President Bashar Assad in Damascus, April 2, 2012. (AP)

Syrians walk through blood and debris after a raid by Syrian troops in Damascus. (AP)

Syrian youth stand in a building damaged by tank shells after a raid by Syrian troops killed several rebels and civilians in Damascus, April 5, 2012. (AP)

Syrians gather near a crater from a tank shell in Damascus. (AP)

Syrians chant slogans against President Bashar Assad upon the arrival of the Free Syrian Army in a neighborhood in Damascus. (AP)

U.N.-Arab League envoy Kofi Annan said a Syrian cease-fire should take effect on April 12 but he admitted that progress is slow in ending violence from the government crackdown on dissent.