NICOSIA (AFP)--Cyprus Monday said it will continue to block the key energy chapter in Turkey's European Union accession bid as long as Ankara opposes Nicosias oil exploration.

"The energy chapter cant open when Turkey tries to impede Cyprus, an E.U. member state, from utilising its own energy sources," Foreign Minister Marcos Kyprianou told reporters.

He said Cyprus had no qualms about opening the chapter if Turkey acted like a modern state aiming to join the E.U. "But as long as it behaves like the neighbourhood bully, then certainly Cyprus cannot give its consent."

Cyprus has protested to Brussels and the U.N. over "provocation" by Turkish naval vessels attempting to impede oil exploration off its southern coast.

Nicosia has reported several "serious incidents" last November when Norwegian vessels were harassed.

Greek Cypriot authorities on the divided island reject Turkish claims that the search for mineral wealth excludes Turkish Cypriots from enjoying the benefits.

Turkey is seen as key to the E.U. as a route to lessen dependence on unstable natural gas supplies from Russia.

The Cyprus government expects to launch a second round of hydrocarbon exploration licences for some of the 12 offshore blocks up for grabs later this year, although no specific date has been set.

Texas-based U.S. firm Noble Energy Inc. (NBL) has been granted a licence to search for oil in one of the designated blocks inside Cyprus's exclusive economic zone off the south coast.

Cyprus has also signed delineation agreements with Egypt and Lebanon, which have agreed to mutually exploit hydrocarbon deposits that criss-cross their boundaries.

The island has been divided since 1974 when Turkey seized and occupied its northern third in response to an Athens-engineered coup in Nicosia seeking to unite Cyprus with Greece.