In a major haul, at least 25,000 electronic detonators were seized on Wednesday from West Bengal's Bankura district, police said.The detonators were found in an abandoned sports utility vehicle (SUV) in Gangajalghati area of the district, some 200 km from Kolkata."We have seized 25,000 electronic detonators. Evident from the labels on them, the devices were manufactured in a company in Andhra Pradesh and brought here without any documents," said Superintendent of Police (Bankura) Sudheer Kumar Neelakantam."We are probing the matter. Prima facie it appears they were brought here for some illegal purpose," added Neelakantam.