KABUL (AFP) - The Afghan government on Friday called for an end to cross-border attacks from Pakistan, warning that such incidents could affect 'improving trust and cooperation between the two wary allies. The ministry of foreign affairs of Afghanistan expresses its serious concern about the continuing Pakistani artillery shelling of Afghan villages in Kunar and Nangarhar provinces, it said. The ministry said that Pakistani shelling killed four children late Thursday in the northeastern province of Kunar, the latest in a series of incidents.