ISLAMABAD, April 22 (Reuters) - Pakistan's President Pervez Musharraf called on Sunday for an end to accusations from Afghan leadership about Taliban activities on Pakistani soil to reduce tension between the two uneasy U.S. allies.

Musharraf, who is due to meet with Afghan President Hamid Karzai in Turkey later this month, warned that distrust between Islamabad and Kabul could harm the U.S.-led coalition against al Qaeda and the Taliban militants.

"Afghan leaders, including Hamid Karzai, have been levelling accusations against Pakistan. These need to be stopped. There is no reality in them," Musharraf told reporters before leaving for a four-nation trip to Poland, Spain, Bosnia and Turkey.

"I am going to meet President Hamid Karzai with the hope that the ground realities will be understood and we will reach conclusion to reduce the tension in the relations of the two countries."

Musharraf said he would meet with Karzai in Turkey in talks hosted by Turkish Prime Minister Recep Tayyip Erdogan. He did not say when the meeting will take place.

"If there is no trust between Pakistan and Afghanistan, it harms the (U.S.-led) coalition."

Relations between the neighbours have strained sharply over the past year as the Taliban insurgency in Afghanistan has intensified. The two leaders have accused each other of not doing enough to stop violence.

Musharraf and Karzai last met for talks in Washington in September, when U.S. President George W. Bush brought them together to try to ease tension.

About 45,000 foreign troops, some half of them American, are in Afghanistan battling the Taliban, mostly in ethnic Pashtun- dominated provinces on the border with Pakistan.

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