A senior Arab field commander has warned of a new wave of attacks in Russia in retaliation for Moscow's abuses in Chechnya. In a tape broadcast by Aljazeera on Saturday, Saudi-born Abu al-Waleed said the campaign might depend on the outcome of Russia's upcoming presidential polls. Al-Waleed said: "The enemies of God drop mines in the forests and, God willing, we will return them to the Russians and they will find them on their land and in the midst of their families." He added: "But perhaps we may wait a little to see the upcoming elections. If they elect someone who declares war on Chechnya, then the Russians are declaring war against the Chechens and by God we will send them these (mines)... Not only these but also things that did not cross their minds." The commander, wearing military fatigues and speaking in Arabic from a Chechen forest hideout, was shown picking up a "butterfly" mine from foliage. He said his fighters had found hundreds of them. "We will return these to you (Russians)... You will, God willing, see hundreds of people crippled." **Russian atrocities*** Security has been tightened across Russia before Sunday's elections, and extra troops have been stationed along the Chechen border where rebels have long been fighting Russian rule. The Kremlin blames Chechen fighters for a spate of attacks including a bombing which killed close to 50 people on a train in southern Russia before last December's parliamentary polls. It also says the fighters were responsible for an attack on the Moscow underground which killed around 40. The Kremlin has been widely condemned for atrocities in its war against Chechens, including for its use of carpet bombing, arbitrary killings and detentions, and kidnappings the civilians. On the other hand, it is estimated that at least 15,000 Russian soldiers have been killed in the conflict. **PHOTO CAPTION*** Abu al-Waleed during his speech. (Al-Jazeera)