A Venezuelan crossword compiler has been questioned by intelligence agents after being accused of hiding a coded assassination message in a puzzle.

Neptali Segovia denies using his crossword in the national newspaper Ultimas Noticias to incite the murder of President Hugo Chavez's brother, Adan.

Answers to clues included the words "kill", "gunfire" and "Adan".

The accusation was made by a pro-government television commentator.