Foreign Minister AK Abdul Momen on Tuesday said former Japanese Prime Minister Shinzo Abe had played a very significant role in developing comprehensive relations with Bangladesh. "We have developed a very warm relationship which helped Japan to come forward in implementing mega projects in Bangladesh," Momen said recalling Prime Minister Sheikh Hasina's visit to Japan and a return visit by Abe in Dhaka.  The foreign minister made the remarks after signing the condolence book at the Japanese Embassy in Dhaka. Read: Japan ex-leader Shinzo Abe assassinated while giving speech