WARSAW, Feb 10 (Reuters) - Polish arms group

Niewiadow-PGM said on Tuesday it had signed a

framework deal with U.S. defence supplier Northrop ‌Grumman

on producing artillery ammunition in Poland.

The deal, ​also signed by Niewiadow units Elaboracja

Niewiadow ‍and Zaklady Sprzetu Precyzyjnego Niewiadow, ⁠sets ⁠out

rules for cooperation on preparation, production, certification

and introduction ‌to market of ​155-millimetre artillery

ammunition, in particular for the European market, Niewiadow

said.

The financial ⁠terms and ‍production details ​were not

disclosed. The 155 mm shell is widely used by Ukraine ‍in its war

with Russia, but has been in short supply.

"The first area of ​​cooperation is the joint production of

a 155 mm artillery ​shell, ‍which is currently at an advanced

stage of preparation for the certification ​process," Niewiadow

said in a press release.

"(The deal) creates a basis for both the development of

production in Poland and joint market initiatives in the area ​of

​​offering ready-made solutions," Adam Januszko, Niewiadow's

chief executive was quoted as saying in the statement.