An explosion at online payment processor Paypal caused property damage, but resulted in no injuries. The company’s web site, one of the Internet’s busiest e-commerce sites, remained online throughout the incident.

The explosion Tuesday night at Paypal’s network operations center in San Jose shattered a window and forced the evacuation of 26 employees, according to local media reports. Law enforcement officials said they “have suspicions” about what may have caused the blast, but did not detail them. The investigation team included members of the local police bomb squad.

A dynamically updating chart of the performance of Paypal.com is available here. Netcraft offers a web site performance monitoring service that provides detailed uptime charts, along with e-mail alerts when an outage occurs.