The National Union of Road Transport Workers (NURTW) has described the purported Quadrennial National Delegates Conference held by the Alhaji Najeem Yasin and AlhajiTajudeen Agbede-led dissidents' group as illegal, unconstitutional and null and void. The union disclosed this in a statement signed by the incumbent President, Alhaji Tajudeen Ibikunle Baruwa on Thursday in Abuja.