Pakistan's officials have said that the extensive damage and loss of life in Quetta was caused by an Improvised Explosive Device (IED) strapped to a motorcycle.
Wazir Khan Nasir, deputy inspector general of police in Quetta, said: "The explosion was caused by an improvised explosive device fitted to a motorcycle."
Here the extent of the damage is being gauged by local people:
More top news
The inquiry's most senior lawyer is said to be considering stepping down after disagreeing with its chairwoman Alexis Jay over its future.
The tennis superstar said she was being driven by her nephew when she saw a police officer and was worried about what might happen.
A team of prosecutors investigating the downing of a Malaysian airliner over eastern Ukraine in 2014 is due to release new findings today.