Three people were killed and nine others injured in a shooting at a residence in Long Beach, California, the local fire department said late on Tuesday. The emergency service confirmed three fatalities and nine patients transported to local area hospitals. The Los Angeles Times reported that some witnesses said they heard at least 20 gunshots. Other witnesses said they believe a Halloween party was happening at the home when shots were fired. Here's Jake Heflin, public information officer with the @LBFD giving reporters an update on the fatal shooting at a Halloween party in #LongBeach pic.twitter.com/KIu0IEWH3e — Ruben Vives (@LATvives) October 30, 2019 Police said most of the dead and injured were in their mid-20s. Long Beach police spokeswoman Jennifer De Prez said it is unknown if the gunman or gunmen fled the scene on foot or by car.