The security operation for the March global nuclear summit in The Hague will be the tightest ever mounted in the Netherlands, officials said on Monday.

In total, 58 world leaders and 5,000 delegates will be in The Hague for the two-day NSS meeting to discuss methods to prevent nuclear terrorism.

The main advice from the police organising the operation to commuters who travel by car from Amsterdam to The Hague and Rotterdam is ‘don’t do it’, the transport ministry’s roads department said.

Road closures

The security measures mean large stretches of motorway will be totally or partially closed off from the afternoon of Sunday March 23 to the early morning of Wednesday March 26.

There will also be road closures and delays for commuters in Wassenaar, Leiden, Katwijk, Noordwijk and Haarlemermeer. Instead, Dutch railway company NS is putting on extra trains to move commuters.

The conference itself will policed by 13,000 officers – four times as many as were on duty for last year’s investiture of king Willem-Alexander. Some 3,000 soldiers and 3,000 military police officers will also be involved in the security operation.

Schiphol

The Dutch counter-terrorism chief Dick Schoof told reporters on Monday that 35 emergency situations have been devised with the contingency plans to deal with them.

Surveillance at border controls with Belgium and Germany and at Schiphol airport are also being stepped up. Part of the airport will be closed to allow world leaders to land and there will be extra monitoring of shipping.

In addition, the Valkenburg former marine base near Katwijk is to be reopened for a five-day period. Performances of the Soldier of Orange musical at the base have been cancelled for those five days.

Watch a transport ministry video about the road closure system