The death of five activists of IUML, a partner in the UDF, at Narikkattiri in Kozhikode when they were engaged in making bombs was a clear indication of that, Achuthanandan told mediapersons in Thiruvananthapuram.
Slamming the UDF for the incident, Achuthanandan wanted Opposition leader Oommen Chandy to apologise to the people owning responsibility for the mishap. Achuthanandan also said the government would sternly deal with the violence.
Five persons were killed and three injured when the country bombs they were manufacturing exploded in Nadapuram.