>LAHORE, Pakistan (AP) – Opposition leader Benazir Bhutto was placed under house arrest for the second time in four days to prevent her staging a march on Tuesday to protest emergency rule, police said. A close aide to the former prime minister said she would try to lead the 185-mile procession anyway.

The showdown intensified the political crisis engulfing Pakistan and further clouded the prospect of a pro-U.S. alliance against rising Islamic extremism forming between Bhutto and President Gen. Pervez Musharraf.

Bhutto’s aide, Sen. Safdar Abbasi, said the seven-day detention order was not binding because neither Bhutto nor one of her representatives had been served with the document.

“We will go ahead with the march,” he told The Associated Press.

Aftab Cheema, the chief of operations of Lahore city police, told the AP that a Bhutto representative had received the order issued by the government of Punjab province, where Bhutto has been staying at the house of a lawmaker from her party.