sentences:  Chancellor of Germany, Gerhard Schröder condemned the "massacre on the Grozny marketplace," and German politicians urged sanctions against Russia.European leaders also demanded Putin put forward a plan to end the war in Chechnya.Amnesty International declared that "even assuming that these weapons [being sold at several stalls in one corner of the market] were indeed the target of the attack, the use by Russian forces of high explosive weapons in a market place crowded with civilians suggests that this attack may have been indiscriminate within the meaning of Article 51 of Protocol I Additional to the Geneva Conventions, to which the Russian Federation is a party, and therefore a grave breach of this Protocol."