The Vancouver man accused of murdering eight people by ploughing a vehicle into a crowded street celebration on Saturday night had been grappling for months with the impact of his brother's murder.

Nepal will issue Everest permits only to climbers with experience of scaling at least one of the Himalayan nation's 7,000-metre (22,965 ft) peaks, according to the draft of a new law aimed at reducing overcrowding and improving safety.

On Sunday, police announced that 11 people died in the incident when an SUV drove into a crowd of people on Saturday, just after 8 p.m.