A gas explosion at a Ukranian mine has killed at least 23 miners, and 10 others are still missing. <br /><br />Ukraine's prime minister is accusing the rebels of slowing down the rescue effort. <br /><br />Al Jazeera's John Hendren reports from Donetsk.<br /><br />More on our website: http://aljazeera.com<br />Follow us on Twitter: http://twitter.com/AJEngligh<br />Subscribe to our channel: http://bit.ly/AJSubscribe <br />Find us on Facebook: http://facebook.com/aljazeera
