1.   A methane blast ripped through a coal mine in Siberia, killing three workers, a news report said Monday.

2.   Almost half of the deaths in January-April of last year occurred in an underground methane blast in April.

3.   Sysuyev heads an official commission looking into the circumstances surrounding the methane gas blast on Tuesday.

4.   Workers dismantling equipment in a coal mine triggered a methane blast Monday, seriously injuring seven miners, the Interfax news agency reported.