Action against Lois Lerner, under fire over extra scrutiny of conservative groups, follows reported refusal to resign.
Fresh clashes between Tripoli residents backing rival factions in Syria's conflict bring death toll since Sunday to 23.
No deaths reported in incident on Interstate 5 in Washington state, which threw vehicles and people into Skagit River.
M23 rebels call for truce coinciding with UN chief's visit to Goma where three days of fighting left at least 19 dead.
Ecuador official says Pegaso survived crash with remains of S14 rocket, but is damaged and unable to transmit signal.
In Depth
23 May 2013 13:01 GMT
Labourers at construction giant Arabtec in the UAE complain of low pay, poor conditions and lack of annual leave.
23 May 2013 17:56 GMT
Former scientist for country's programme says the regime used sarin agent in small quantities to halt rebel advances.
In Video
Programme Highlights
Special series23 May 2013 14:50 GMT
A four-part series that gives a rare insight into the country on the move, with history in tow.
101 East22 May 2013 15:48 GMT
101 East takes a rare peek inside Yangon's most famous building, as Myanmar's colonial architecture is under threat.
Programmes
Featured
Two years since the start of the uprising, rebels and Assad's forces remain locked in conflict.
A four-part series that gives a rare insight into the country on the move, with history in tow.
News and analysis of 2013 presidential contest as Ahmadinejad finishes second term.
Extensive coverage of war crimes tribunals and controversial calls for blasphemy laws.
Series on the Palestinian 'catastrophe' of 1948 that led to dispossession and conflict that still endures.
In Pictures
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