The Latest: Feds arrive to probe San Francisco gas blast

SAN FRANCISCO (AP) — The Latest on a natural gas explosion in San Francisco (all times local):
10:15 p.m.
The National Transportation Safety Board will investigate a natural gas explosion on a San Francisco street that sent flames into the air, damaging five buildings and sending panicked residents into the streets.
NTSB spokesman Eric Weiss says an eight-person team arrived at the scene Thursday night. Team members will be collecting evidence and trying to pin down what happened.
City fir