SAN FRANCISCO (AP) - San Francisco officials say an investigation has found there is no indication the city is liable for injuries suffered by two brothers who were attacked by an escaped zoo tiger.

In a letter released Friday, City Attorney Dennis Herrera denies claims for monetary compensation "for serious physical and emotional issues" filed by Kulbir and Paul Dhaliwal. The brothers were attacked by a Siberian tiger on Christmas Day after it escaped its pen. The tiger killed the Dhaliwal's 17-year-old friend before being shot by police.

Herrera says the claims should be referred the San Francisco
Zoological Society, which manages the zoo.

The claims are a precursor to a lawsuit.

(Copyright 2008 by The Associated Press. All Rights Reserved.)

AP-NY-05-09-08 1630EDT