U.S. experts in counter-smuggling will provide practical assistance to Ukrainian customs officers at airports and ports of Ukraine, head of Ukraine's State Fiscal Service Roman Nasirov has said.

"We've agreed that two teams [of U.S. experts] will work here – one will work at airports, the other at ports of Ukraine, and will train our customs officers virtually afield," Nasirov told reporters in Kyiv on Monday after an official ceremony when Ukraine and the U.S. signed an intergovernmental agreement on mutual assistance between customs agencies.

In his words, this is the best assistance the Ukrainian customs can get.

Nasirov also said that prior to the signing of the new agreement; Ukraine and the U.S. had worked under an agreement signed way back in 1990.

As Interfax-Ukraine reported earlier, Ukraine and the United States on Monday signed an intergovernmental agreement on mutual assistance between the two countries' customs authorities.

Nasirov signed the document on behalf of Ukraine, while incumbent U.S. Commissioner of U.S. Customs and Border Protection Richard Gil Kerlikowske represented the United States.

The U.S. Commissioner said that the agreement creates the necessary legal basis for the exchange of information and helps our countries implement laws concerning customs rights. "This agreement enables us to share experience and further improve our relations," Kerlikowske added.