Mr Ogar said that the trucks were impounded for conveying petroleum products without haulage licences and other required documents.
No fewer than 29 people were killed and others injured when a stampede broke out at a church event on Saturday, most of whom were children.
The suspected smugglers manoeuvred a petrol tanker to the border between Rivers and Imo en route neighbouring countries.
The NSCDC chief advised that officers should rather educate citizens that they are acting within the ambit of the law, rather than confronting them.
