Police are confident that the bomb blast incident at a ceramah in Penang will be solved soon.
Inspector-General of Police Tan Sri Ismail Omar said police had also increased presence at political ceramahs nationwide to prevent a recurrence of such an incident.
In the April 23rd incident, a home-made bomb exploded behind the main stage of the BN operations centre in Nibong Tebal as state Gerakan chairman Datuk Dr Teng Hock Nan was delivering a speech before a crowd of about 2,000 supporters
A 35-year-old party worker was injured.
Three men aged between 25 and 41 have been arrested so far.