Pakistan, July 27 -- After a spate of vandalism reports involving graffiti at a few mosques in Texas and California, Muslim leaders there have stepped up existing efforts to keep their sacred spaces and community members safe.

The incidents and subsequent hypervigilance add to what many American Muslims say has already been a charged climate amid the fallout in the US from the Israel-Hamas war that has killed tens of thousands of Palestinians and devastated Gaza. The war started in October 2023 with a deadly attack by Hamas on Israel.

"The past two years have been extremely difficult for American Muslims," said Edward Ahmed Mitchell, national deputy director of the Council on American-Islamic Relations, a Muslim civil rights and advocac...