The National Security Adviser (NSA) office has issued a disturbing alert that Boko Haram insurgents plot to launch attacks in Lagos.

Specifically, in Lagos seaports, Vanguard reports.

The alert was made after the US Embassy had lamented over the security situation at the sea ports. The notice triggered the increase in the level of security checks and imposition of additional restrictions.

The security alert was signed by Assistant Comptroller General of Customs in charge of Enforcement and Intelligence, Mr. Dan Ugo, on behalf of the Comptroller General, Col. Hameed Ali (retd).

The development has brought about an increase in the level of security checks at all access points into the ports.Following the security alert, the Nigeria Customs Service, NCS, has begun the restriction of persons into its various commands and formations in Lagos.

Port Facility Security Officer Forum on its part ordered the body members to enhance surveillance and limit access to the premises.

An increased number of clearing agents have been observed at the Nigerian Ports Authority since last week.

Zeb Ikokide, the Forum vice chairman, warned Customs to stop delaying cargoes at the gates, noting that all the work with documentation should be finished before the items reach the exit gate.