Cecil the lion hunter Walter Palmer faces calls for prosecution

US uproar over death of protected animal forces Walter Palmer's practice to close, as two others attend Zimbabwean court to face poaching charges

There are mounting calls for the prosecution of an American dentist who shot dead one of Africa's most famous lions, as two other men involved in the hunt appeared in court in Zimbabwe to face poaching charges.

Walter Palmer, who runs a dental practice in Minnesota and hunts big game in his spare time, is accused of illegally killing Cecil, a protected lion, in Zimbabwe on a $50,000 (32,000) hunt.