5 explosions wound at least 25 in Pakistan

Sat Jul 5, 2008 6:35 AM EDT

<p>Pakistani protesters hold a rally to condemn the ongoing crackdown operations in Pakistani tribal areas on Friday, July 4, 2008, in Peshawar, Pakistan. A senior Pakistani official said Friday the government is serious in fighting Islamic militants despite accusations that a weeklong military operation in a volatile tribal region has failed to target extremist chiefs. The sign on top reads "Bara operation should be stopped." (AP Photo/Mohammad Sajjad)</p>

Pakistani protesters hold a rally to condemn the ongoing crackdown operations in Pakistani tribal areas on Friday, July 4, 2008, in Peshawar, Pakistan. A senior Pakistani official said Friday the government is serious in fighting Islamic militants despite accusations that a weeklong military operation in a volatile tribal region has failed to target extremist chiefs. The sign on top reads "Bara operation should be stopped." (AP Photo/Mohammad Sajjad)

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KARACHI — Police say a string of explosions has hit the Pakistani city of Karachi, wounding at least 25 people.

The blasts come a day after a suicide bombing in Islamabad killed 18 people, most of them police officers.

Babar Khattak, the Sindh province police chief, says at least two of the Karachi blasts involved "low-intensity explosive material."

Karachi police chief Wasim Ahmad says five blasts occurred Monday.