Jongrak, who took out the first court-ordered arrest warrant for a bombing suspect on Friday, is reported to have prepared documents to seek warrants for six more suspects, five men and one woman.

All seven were allegedly responsible for three blasts in Bangkok on December 31, out of a total of nine small bomb attacks, undermining public confidence in the government's ability to ensure peace and order.

In the explosion at the Seacon Square shopping mall on Srinakarin Road, police will seek warrants to arrest five suspects, Tawansak Pae-nae and four others yet unidentified, according to a report in the Thai-language Daily News.

Police will also seek a warrant for another unidentified suspect for the explosion at Bangkok's Major Ratchayothin cineplex, whose security system captured the key suspect on videotape.

This person was shown to have planted a suspicious package near a McDonald's restaurant inside the premises.

A cleaner unknowingly removed the package and threw it into a garbage bin, where it exploded shortly afterwards.

Police also plan to seek another warrant to arrest an unnamed person who allegedly planted another small bomb near Bangkok's Saphan Khwai intersection.

The court will be furnished with a copy of the videotape that recorded that person's identity.

General Isaraphun Sanid-wongse, a deputy National Police chief, said images of several suspects caught on videotape had been sent to Canada for enhancing to improve their quality so authorities had a better chance of arresting the bombers.