TEHRAN, Iran (AP) — A delegation from the European Parliament has called off plans to visit Iran after being refused guarantees they could visit two jailed activists awarded freedom prizes, officials said Sunday.

The trip, scheduled for its first full day on Sunday, had brought criticism from some conservative European politicians, claiming it sent mixed messages as the European Union tightens sanctions on Iran over its nuclear program. A senior Iranian lawmaker, Alaeddin Boroujerdi, was quoted by the semiofficial Mehr news agency as blaming Israeli pressure for the cancellation.